Ex-Liverpool star Jermaine Pennant believes Jurgen Klopp's ageing midfield needs revamping - describing it as "lacklustre".
The Reds suffered a 3-1 defeat at Brentford on Monday night and face an uphill battle to finish in the top four of the Premier League. Klopp's side are currently sixth in the table - seven points behind Manchester United in fourth and 16 behind leaders Arsenal.
Klopp was urged to sign a new midfielder last summer due to his ageing side. Jordan Henderson (32), Thiago Alcantara (31) and Fabinho (29) are past their theoretical peaks, while James Milner, Naby Keita and Alex Oxlade-Chamberlain are out of contract in June.