"It is a blow for us," said Gerard Houllier. "Harry took a whack on his ankle with his last kick of the game against Bolton and suffered ankle ligament damage.
"He will be out for between two and three weeks. Obviously we are disappointed because Harry and Michael Owen give us a lot of attacking efficiency and we are without them both at the moment.
"Harry has done well since he has come to the club. He has provided the missing link between midfield and attack and has scored some important goals."
Discuss Liverpool's injury crisis