Liverpool on Friday confirmed that defender Glen Johnson will be out for an indefinite period, adding to the club’s injury crisis at a crucial period of the Premier League season. Coach Brendan Rodgers also confirmed that midfielder Lucas Leiva would be out for a “few months” after he picked up a knee injury against Aston Villa last weekend. Meanwhile, defenders Mamadou Sakho, Jose Enrique, Jon Flanagan and Daniel Agger are all still missing due to various injuries.