Coutinho, 24, was forced off early in Liverpool's 1-0 win at Watford on Monday night after suffering a "dead leg."

The Brazil international was absent from team training at Melwood on Thursday afternoon, but sources say he took part in a light session as he recovers from the knock.

Coutinho downplayed the injury after the Watford victory, saying it was not "serious," while Liverpool manager Jurgen Klopp hoped for a swift recovery.

In an interview published on the club's official website, Coutinho says he is hopeful that he can play in Sunday's game against Southampton.
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"The injury is much better," he said. "It was a hard tackle and what happened was a dead leg. It caused a lot of pain in the area I was hit, but the pain has reduced now.

"At the moment, I am feeling very well -- the first couple of days were the most painful.

"When you have to come out of such an important [game] like this one, and when you leave that early, it frustrates you. But thanks to God it was nothing major -- just a strong tackle."

Liverpool hope to have Coutinho fit and available at Anfield on Sunday as they look to keep their Champions League qualification hopes on course.