Both the Reds and England face a nervous wait to find out the extent of damage on the player's knee, which was seemingly hurt in an early challenge
Alex Oxlade-Chamberlain has raised alarm bells in the Liverpool and England camps after limping out of the Champions League semi-final first leg.
The England midfielder has been in fine form for the Reds in recent weeks, playing a huge part in their march to the last four.
But he lasted barely 15 minutes on Tuesday before being forced to withdraw through injury.
Oxlade-Chamberlain dived into a challenge with Roma's Aleksandar Kolarov early in the first leg, and was left crumped on the floor with apparent damage to his knee.