Manchester United midfielder, Paul Pogba, faces the prospect of weeks on the sidelines, after suffering a hamstring injury during their 3-0 win over Basle in the Champions League on Tuesday.
Pogba pulled up after just 19 minutes, after appearing to overstretch while making a challenge.
The France international immediately signalled to the bench and headed straight down the tunnel shaking his head.
His replacement, Marouane Fellaini, scored soon after being introduced.
It is the second hamstring problem Pogba has suffered in six months, having also departed early against Rostov during the Europa League knockout clash in March.