Arsenal 'owe themselves a performance', says Wenger

UEFA Champions League 2016/17: Arsenal 1-5 Bayern Munich (agg. 2-10) ,5 talking points

It is unclear whether that contributed to Arsene Wenger's team selection against Liverpool or if it was just some tactics for the Arsenal manager.

Speculation over his future has been cranked up as reports of a training-ground bust-up have emerged since being dropped from the starting line-up for Saturday's 3-1 loss at Liverpool.

Wenger tried to rectify his mistake at half-time by sending on Sanchez for Francis Coquelin and, after Giroud's header was tipped on to the crossbar by Simon Mignolet, the Chile global made his mark.

"I think in the first half we suffered from a lack of competition but it was a game of two halves and in the second half we did well".

As always, though, there are key tactical decisions that either club can make in order to win the game...

"He is a player that Arsenal need desperately to be there", said Wright.

And, speaking to the media after the training session, Wenger insisted there are no issues with Sanchez - even if some of his behaviour can be "excessive" at times.

"The definition of a happy person is very hard, I have never found an ideal situation". I never found the ideal one.

"I hope he will be very happy tomorrow night".

He said in the post-match press conference: "We were absolutely spot-on from the first second in the game". So, okay, you say it is about quality and sometimes probably, yeah, we don't have the quality.

Liverpool have not lost a game against any of the top six this season, winning five and drawing four. It's not down to one individual.

The Chile global, who has scored 20 goals this season, did not appear until the start of the second half - by which time the Gunners were 2-0 down to goals from Roberto Firmino and Sadio Mane.

A must-win game for both sides, Liverpool once again came up big against a direct rival and suddenly, Anfield is full of belief once again.

He said: "In 17 years as a manager, I've seen the worst training weeks in my life and the best performance at the weekend - and the other way around, unfortunately".

Wenger described his relationship with Sanchez as "honest and normal, like with every single player".

Arsenal are now 13 points off top spot in the Premier League and on the brink of a seventh straight last 16 exit in the Champions League.

Arsenal's team is pictured in the stadium prior to the UEFA Champions League round of sixteen football match between FC Bayern Munich and Arsenal in Munich, southern Germany, on February 15, 2017. But not when the best player on the team is sitting for no reason.

He proved that when he played Danny Welbeck through for his goal but there is no doubt that this decision will pile more pressure on Wenger.