New Liverpool midfielder Adam Lallana is set to miss the start of the Premier League after injuring a knee in training during a preseason tour of the United States. Liverpool said the signing from Southampton knocked a lateral collateral ligament during a session at Harvard University in Boston. Medics have not predicted when Lallana will return, but the club said "injuries of this nature can result in a spell of anywhere up to six weeks on the sidelines.Read more on NewsOK.com