Wenger surprisingly dropped Sanchez to the bench for the crucial clash at Anfield before bringing him on in the second half of the 3-1 loss, when the Gunners were already 2-0 down.
Sources say Wenger has been unimpressed with Sanchez's attitude, particularly his behaviour during the 5-1 defeat by Bayern Munich in the Champions League last month. Ibrahimovic also saw a second-half penalty saved by Artur Boruc, preventing him from registering a 27th goal of the season.
"I am not a clown - even though a few people think I am", said the 49-year-old German.
Amid all the tactical sophistication of the modern game with its various formations and talk of "gegenpressing", it is sometimes re-assuring to be reminded that certain things are a constant. On the football front, it is to play well and win. Ten minutes after Sanchez's introduction, he assisted Arsenal's lone goal. But clearly upset with the decision, the Chilean proceeded to put his tracksuit coat over his head after taking his seat on the bench.
Today it has been revealed that Sanchez was dropped as a result of a furious training ground bust-up.
The Reds' record against top-half teams compared to bottom-half teams this season only adds to the fact that Wenger should have played his best player from the start.
And former Arsenal midfielder Merson, who was stunned by Wenger's decision, admits it could be the final straw in Sanchez's patience with the club.
Several leading clubs are monitoring his situation - chief among them are Paris Saint-Germain and Juventus. The Senegalese striker scored Liverpool's second goal as they were victorious over Arsenal.
"Look, the thinking was that we had to go more direct". Such an abysmal record will not only make it hard to keep someone like Sanchez at the club, but puts a huge amount of pressure on Wenger to announce whether he will be signing a new two-year contract with the north London giants.
He also refused to confirm whether the forward would return to the starting line-up against Bayern Munich. Arsenal are effectively out of the competition having suffered a 5-1 hammering in Munich in the first leg, but with Mesut Ozil nearly certainly still sidelined through illness, keeping their best player out again (for whatever reason) is effectively waving the white flag. He has, however, not given up. "He is a player that Arsenal need desperately to be there", said Wright. This club isn't about one single player, all these stories about one player is very destructive to our team. "But that is not the case".
"I have no special regrets, the only regret is to have lost the game", Sport24 quoted Wenger as saying.