The Swede has fired back a strong response.

Was Isak out of line with how he forced a move to Liverpool?

A day to forget for the Arsenal new boy.

‘They need that added spice.’

‘They need that added spice.’

The champions host Arsenal in a blockbuster showdown on Merseyside.

Last season’s champions host last season’s runners up.

Last season’s champions host last season’s runners up.

Does Arteta need to switch up how Arsenal play?

Noni Madueke left Chelsea to join Arsenal (Picture: Getty)

Noni Madueke has welcomed any ‘competition’ he will face following Arsenal’s move for Eberechi Eze and heaped praise on ‘special player’ Max Dowman.

…

He couldn’t resist…

Newly-promoted Leeds are in the capital.

Arsenal are at the Emirates for the first time this season.

He was a tough time at Old Trafford last time out.

It was a forgettable debut from the Swedish striker.

Bukayo Saka has been a reliable penalty taker for Arsenal (Picture: Getty)

Attention Fantasy Premier League managers, Arsenal may well have a new penalty taker this season.

Bukayo Saka has been the Gunners’ go-to man from the spot …

Did the Gunners get the wrong striker?

Did the Gunners get the wrong striker?

Arsenal’s first home game of the season looms this weekend.

Manchester United legend Wayne Rooney has issued a warning to Viktor Gyokeres after his subdued Arsenal debut.

Gyokeres struggled to make an impact in Arsenal’s Premier League opener at Old Trafford on Sunday and was replaced in the second half by Kai Havertz.

Much is expected of Arsenal’s £64m summer signing following his sensational form for Portuguese giants Sporting.

Gyokeres, who was playing in the Championship with Coventry City three seasons ago, scored 97 goals in 102 appearances for Sporting, helping them win back-to-back league titles.

The Sweden international was brought in to solve Arsenal’s goalscoring issues and take the Gunners to the next level after three successive second-place finishes.

Some pundits expressed concern over Gyokeres’ performance against Manchester United but Rooney says he ‘didn’t get much support’ and insists ‘you don’t become a bad player after one game’.

However, the England legend also warned Gyokeres he is playing in a ‘completely different league’ and faces ‘a lot more pressure’ than he may be used to.

‘To be fair to him he didn’t have much support at times,’ Rooney said on his BBC podcast when asked about Gyokeres’ Arsenal debut.

‘He was a bit isolated, he did show his strength, there was one time he ran into the channel and pushed [Matthijs] De Ligt off the ball.

‘You don’t become a bad player after one game. I actually played against him a couple of years ago when he was at Coventry and back then you could tell he was a good player.

‘The one thing I would say is this league is completely different to where he’s been and there’s a lot more pressure.

‘Arsenal have been in need of a striker and he’s the one they’ve put the trust in and spent the money on so there is a lot of pressure on him.

‘Now, the question I would have is can he handle that pressure? We’ve seen at Man United some players just can’t do it, just can’t handle the pressure of playing for a big club.

‘I guess we’re going to find out over the next few months.’

Rooney also assessed Arsenal’s Premier League title chances after they began the season with a hard-fought 1-0 win at Old Trafford.

As well as Gyokeres, Mikel Arteta has welcomed Martin Zubimendi, Noni Madueke and Christian Norgaard to the Emirates Stadium this summer.

‘I think they can,’ Rooney said when asked if he believes Arsenal can win the title ahead of the likes of Liverpool and Manchester City Chelsea. ‘It will be tough but they can.

‘You can’t judge them on that performance because I know what it’s like at the start of the season, it can be tough for players.

‘Arsenal are certainly one of the three or four teams that can win it, that’s for sure.’

The Gunners will attempt to make it two wins from two on Saturday when Premier League new-boys Leeds United visit the Emirates Stadium.

Leeds marked their return to the top-flight with a 1-0 win over Everton on Monday night.

Six other teams won their opening games of the season as well as Arsenal, including defending champions Liverpool and Pep Guardiola’s Manchester City.

Liverpool scored two late goals to beat Bournemouth 4-2 while Man City looked formidably strong in a 4-0 thrashing over Wolves.

For more stories like this, check our sport page.

Follow Metro Sport for the latest news on Facebook, Twitter and Instagram.

Former Liverpool defender Jamie Carragher (Picture: YouTube)

Jamie Carragher believes Mikel Arteta may not trust Viktor Gyokeres in the big games and would be surprised if Arsenal’s new striker starts against Liverpool in a fortnight…

Viktor Gyokeres during his Manchester United debut against Arsenal (Picture: Getty)

Frank Leboeuf wasted no time before questioning Arsenal’s signing of Viktor Gyokeres following his ‘concerning’ Premier League debut.

Th…

‘They were really sloppy.’

‘They were really sloppy.’

Viktor Gyokeres had a ‘tough day at work’ on his Premier League debut for Arsenal, but Freddie Ljungberg is still expecting a good season from his fellow Swede.

It was a successful afternoon for the Gunners as they beat Manchester United 1-0 at Old Trafford, kicking off their campaign with a hard-fought three points.

It was not particularly a performance to remember from Mikel Arteta’s side, with the Red Devils causing them a lot of trouble and spurning a number of chances.

It was also a very underwhelming display from Arsenal’s £64m new striker, with Gyokeres not having much impact on the game at all.

There was a willingness to run the channels and he showed off his strength, but didn’t pose a threat to the Manchester United goal and put in a really awful cross at one stage from a promising position.

The former Sporting man was hooked after an hour, replaced by Kai Havertz on an afternoon that did not go how he would have hoped.

Ljungberg, who won two titles with Arsenal, says it will take time for his countryman to make the step up from the Portuguese top flight to the demands of the Premier League, but is not concerned by the tricky start.

The 48-year-old still thinks Gyokeres will score an impressive number of goals this season, as long as he doesn’t lose confidence by struggling to get off the mark for some time.

‘It was a tough day at work for him,’ Ljungberg told ViaPlay. ‘He obviously wants to score goals and the fans want to see him score goals.

‘I’ve said it before and I’ll say it again, this is the Premier League, not the Portuguese league. But you can see he has it in him, so I’m not worried.

‘I think he will be around 20 goals this season if he breaks the zero early.’

Arteta defended his striker’s debut, saying that his teammates failed to give him the ball in promising positions a number of times.

‘I think there are seven, eight situations when the ball is completely open to play through and we are in and attacking the ‘keeper,’ Arteta said. ‘We give the ball away and then it becomes a basketball game.’

The manager added on the Swede: ‘Well he did a lot of things very good.

‘You can tell especially in our high press and rhythm that we demand, that especially in the first half we were giving a bit too much time. It is something that we have to work on him, especially there.

‘Then in the final action situation, he did not have that many chances to do that, because in the previous action, we had to play that last ball and the last was standing still with 40 metres to play.

‘We did not manage to put the ball through to exploit his quality. But overall, coming away to Man United, winning your first game with Arsenal, is a good start.’

Manchester United legend Roy Keane suggested Gyokeres will need some time to get up to speed in the Premier League, particularly as he joined pre-season with Arsenal late after his arrival from Sporting and because of his muscular phrame.

‘When you’re a big strong man like that and you do miss pre-season, sometimes for the bigger lads, the big units, he’s a big strong boy like an old fashioned striker, you definitely need a bit more time to get up to speed,’ Keane said on Sky Sports.

‘Sometimes the slighter lads are a bit sharper up there, but for the big lads it just takes a bit longer to get back in the swing of things.’

Arsenal are back in action on Saturday evening when they host Leeds United, when Gyokeres will hope to get off the mark in front of his home fans.