David de Gea will have a scan on his knee on Monday ahead of Manchester United's Champions League meeting with Paris Saint-Germain.
The Spanish goalkeeper was forced off at half-time during United's 3-2 win at Southampton on Sunday after colliding with the post trying in vain to keep out James Ward-Prowse's free-kick.
Dean Henderson replaced De Gea at the interval, making his Premier League debut for United, and may start the important Champions League clash at Old Trafford if the Spaniard is sidelined.



United manager Ole Gunnar Solskjaer said: '[David has] A knock just above the knee, so hopefully he'll be okay for Wednesday, but we don't know.