With Arsenal cruising to a 3-0 victory over Dinamo Zagreb, many fans around the Emirates were surprised to see Alexis Sanchez remain on the pitch for the full 90 minutes.
The Chilean had already done his job, scoring two and assisting another in sealing a certain victory with 20 minutes to spare. It was the perfect opportunity for Arsene Wenger to rest arguably his most important player, but he didn't.
Wenger's decision became even stranger after he revealed that there had been a "hamstring alarm" with Sanchez. However, the Frenchman was also confident Sanchez would shake it off in time to face Norwich in five days time.
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Indeed, he did. Sanchez was amongst the starting XI on Sunday, in what was his 29th start of the season for both club and country. The pressure on his body told and he pulled up with a hamstring injury after 60 minutes. It seemed inevitable, but Wenger disagrees.
With the annual injury crisis in full flow at the Emirates, Wenger has once again been forced to defend his management of players.
Speaking ahead of Arsenal's game against Sunderland, he insisted Sanchez was fit and ready to play as far as his medical team were concerned, but also said he was prepared to take the blame.
Here are some tweets from the journalists present
Arsenal also lost Santi Cazorla in the game against Norwich with Wenger confirming he is likely to be out until at least March with knee ligament damage. The Spaniard injured himself early in the second half but continued to play on as Wenger had used his three substitutes.
He joins Francis Coquelin, Danny Welbeck and Jack Wilshere amongst others in a very crowded Arsenal treatment room.
Arsenal's list of injuries
Santi Cazorla: Knee Injury
Alexis Sanchez: Hamstring Injury
Laurent Koscielny: Hip Injury
Mikel Arteta: Calf injury
Francis Coquelin Knee injury
Theo Walcott: Calf injury
Jack Wilshere: Shin Injury
Tomas Rosicky: Knee Injury
Danny Welbeck: Knee Injury