Adam Lallana
Adam LallanaReuters

Liverpool have suffered a major blow as new signing Adam Lallana has been ruled out for the start of the season with a knee injury.

The England international joined Liverpool earlier in the summer from Southampton and was taking part in only the fourth training session with his new club when he suffered the injury. He is currently with the Reds squad that travelled to the US for their pre-season tour.

Liverpool football club have confirmed the injury to their player, but have not given a fixed timeline regarding his return, only stating the regular timeframe for this sort of injury.

"The midfielder, who moved to Anfield from Southampton earlier this month, sustained a knock to his lateral collateral ligament during a session at the Reds' Harvard University training base in Boston."

"Lallana has been assessed by Liverpool's medical staff and does not require surgery."

"No specific timeframe has been placed on a return to fitness, but injuries of this nature can result in a spell of anywhere up to six weeks on the sidelines."

"The England international will undergo further assessment by the club's medical team in the United States and on return to Liverpool," a statement on Liverpool's official site read.

It's a big blow for Liverpool and the player, who will be eager to get back and start playing for his new club as soon as possible.

Meanwhile, Liverpool boss Brendan Rodgers is adamant that he did not pay over the odds to bring Lallana to Anfield and feels that English players always have a premium attached to their valuation.

"For British players across the board there is always that premium and the value is always pushed up. We paid what we thought he was worth and would not go higher," Rodgers said, as quoted in the Daily Mail.