Liverpool's £17m summer signing Mamadou Sakho is keen to prove he's not a flop after a inconsistent start to his career at Anfield.
Speaking to the Daily Mirror, the France international said he was settling well into life in Liverpool, but admitted his performances on the pitch need to improve.
Brendan Rodgers spent £17m to bring him over from Paris St Germain, and Sakho is eager to repay the trust shown in him by Liverpool's manager.
"I am not yet at 100 per cent, I'm progressing with each match that we have," said Sakho. "When you arrive in a country you don't know, you have to learn quickly about the differences in the game and have to get on and adapt yourself to the qualities of your teammates.
"I work every day at training sessions to progress and to achieve the highest level. It's logical that I would improve."
Sakho also revealed that Rodgers has dubbed him 'Killer' in training, and the Liverpool boss plainly believes the Frenchman has what it takes to become a leading Premier League defender.
The Anfield manager has switched his system since the arrival of Sakho, playing three at the back, with Sakho alongside Martin Skrtel and Daniel Agger.
And Sakho believes the more matches he plays in the formation, the more comfortable he will get playing for the Reds.
"Over the course of the matches, you hope to be able to adapt to and dominate with a different system," Sakho continued. "I don't think it will be a problem for me."