Liverpool boss Brendan Rodgers admits Joe Cole's injury record is a concern after he broke down in defeat at West Bromwich Albion.

Rodgers admitted to being concerned over the recurrence of substitute Cole's hamstring injury which led to him being taken off.

He said: "It is strange because Joe had trained all pre-season very well and then got injured in our first European game with Gomel.

"He came back, did well in training, came on at Albion for 10-15 minutes and the hamstring has happened again. It is something the medical people will have to look at."