Southampton midfielder Carlos Alcaraz has been "feeling guilting" about injuring himself celebrating his goal against Leicester, said boss Ruben Selles.
The Argentine midfielder is a doubt for Southampton's visit to Manchester United on Sunday after damaging his knee while sliding after his goal.
The 1-0 victory lifted Saints off the bottom of the Premier League for the first time since November.
"It was the emotion of the moment," Selles said of the 20-year-old.
Alcaraz had to be replaced early in the second half of the United game after being unable to run off the injury.
Spaniard Selles added: "You know they are young players and they need to learn those situations.
"He has been feeling a little bit guilty, but let's see if he can make it or not [to the Manchester United game]."
"If he is not fit for the game, he will for the midweek game against Brentford.
"I say many times, we are learning together and that is learning for him."