Salomon Kalou had an inconsistent spell at Chelsea between 2006 and 2012 before leaving to join Lille in France, but there he looks a player rejuvenated.
Kalou made 254 appearances for Chelsea in six years with 107 of those coming from the bench. Despite this he did manage to score 60 goals for the club. He never quite established himself as a key player in the first eleven but he did show that he was capable of some match winning performances.
It was his lack of consistency that stopped him from progressing any further. In his last season at the club he was frozen out by Andre Villas-Boas before being given another chance by Roberto Di Matteo. He helped contribute to FA Cup and Champions League successes before leaving in the summer once his contract expired.
There was plenty of interest in him when he left Chelsea and he eventually joined Lille where he scored 14 goals in 28 league games in his debut season. This year he has helped them to third place in Ligue 1 at the moment, just four points off the top of the table.
Kalou is keen on a return to England though and The Mirror reports that he could leave Lille for just £2.5 million. It would represent an absolute bargain, and Liverpool are keen on bringing him back to the Premier League, but do they really need him? Brendan Rodgers tried to bring in a lot of attacking players in the summer and failed with attempts for Willian and Henrikh Mkhitaryan.
Luis Suarez has been performing out of his skin down up front for Liverpool and has had able support from Coutinho, Raheem Sterling, Victor Moses and Daniel Sturridge before his injury.
There is also Iago Aspas, who scored in the FA Cup win over Oldham Athletic and then Fabio Borini and Oussama Assaidi who have been impressing out on loan. It would seem Rodgers has enough cover for these areas.
However Liverpool are pushing for the top four, and possibly a title challenge this year, and improvements in January could make the difference.
If Kalou is available at just £2.5 million then it is certainly worth trying to bring him in. They should move quickly if Spurs are readying a bid also.
Kalou has great pace, and knows the league well so should settle in straight away. It wouldn't represent much of a risk, and would strengthen the depth in the Liverpool squad.