Henrikh Mkhitaryan scored, then went off injured in Manchester United’s away clash at Saint-Etienne.
The Armenian poked home a delightful Juan Mata cross in the 16th minute to put United into a 4-0 aggregate lead.
But then, worryingly for his boss Jose Mourinho, came off the field in the 25th minute holding his hamstring to be replaced with Marcus Rashford.
Mkhitaryan was earlier pictured holding his leg, and went straight down the tunnel.
Michael Carrick also left the pitch too, to be replaced by Bastian Schweinsteiger.
Boss Jose Mourinho admitted the pair would most likely miss the EFL Cup final against Southampton this weekend.
“Honestly, I don’t think Mkhitaryan is fit for the final. I think him and Michael are both out,” said Mourinho.
“You can be injured leaving your house, you can be injured in the garden. You never know when and why.
“Obviously they are important players for us and not to have them both for the final is complicated but I think Marouane (Fellaini) and Bastian (Schweinsteiger) – two players who are normally not playing too much – is a good answer.
“I don’t say they will definitely miss out, I just say what I feel. It’s three days before the final. Even if it’s a minor injury I think three days is no time.”