An Arsenal substitution caused controversy at The Emirates.
Arsene Wenger's decision to substitute goalscorer Joel Campbell after an hour against Swansea City was met with boos among supporters at The Emirates.
The Gunners went on to lose the game 2-1, losing further ground in the title race, now six points behind leaders Leicester City.
The decision was met with derision on social media, with regular critic of Arsene Wenger, Arsenal fan Piers Morgan predictably slating it.
Less likely however was the action of former Arsenal striker Lukas Podolski, who favourited - or 'liked' the tweet.
Podolski joined Arsenal in 2012 before leaving at the start of 2015 to go on loan to Inter Milan, and was sold to Galatasaray last summer after failing to work his way into Arsene Wenger's starting XI in his third year at the club despite an impressive strike rate when called upon.
If any body empathises with the Frenchman's occasionally odd selection decisions, Podolski is the man.
The scoreline at the point of the substitution was 1-1, and the Gunners went on to concede a late goal from Ashley Williams and slip to a shock home loss.