Swansea manager Alan Curtis said he expects more from Jonjo Shelvey following Sunday's 3-2 FA Cup defeat at League Two Oxford, after which the midfielder appeared to have an angry confrontation with a fan.
Shelvey, who has only started once in the Premier League under the management of Alan Curtis, was selected at Oxford but could not prevent the Swans from crashing out of the competition.
The 23-year-old and his teammates went to applaud the travelling Swansea supporters at the end, but he seemed to become embroiled in a row with one fan and then appeared to invite the man to meet him outside.
Is this the reason Jonjo Shelvey was involved in heated argument with #Swans fans? https://t.co/5umF5JhNO9 pic.twitter.com/E57zxIkkAj
- Swansea City Online (@SwanseaCityLive) January 11, 2016
Curtis said: "The suggestion is that some of the crowd were having a go at him, but I genuinely did not see that.
"I heard the crowd sing his name a few times during the game, so I do not know what the reaction was. I have not had a chance to speak to him.
"His performance was a bit like the team -- he started poorly and got better. But we expect more from Jonjo, it is as simple as that.
"We know the ability he has got, and if he does not play at those standards everyone starts to point fingers."
It is unclear whether Shelvey, who has been linked with Crystal Palace and Newcastle, will start Wednesday's key Premier League game at home to Sunderland.
Curtis said: "Once Wednesday comes around, it will probably be a completely different set of players."