Key Liverpool defender ruled out of Arsenal clash

Arsenal have been handed a big boost with Liverpool defender Andrew Robertson being ruled out with a knee injury.

The Scotland international suffered the setback before the last international break and he has yet to make a full recovery.

He has returned to working on grass, but manager Jurgen Klopp has said that the game will come too soon for the left-back.

The news should please the Gunners, considering Robertson has been hugely influential for the Reds in the previous meetings.

The 28-year-old has contributed a goal or an assist in three of the previous four Premier League matches against Mikel Arteta's side.

Arsenal have the opportunity to stay top of the table with another win.

If they can beat the Reds on Sunday, they can make a huge statement. The Gunners would be considered as genuine title challengers.

Arsenal currently have a slender one-point lead over second-placed Manchester City, who are everyone's favourites to win the league again.