Since arriving in 2018, Keita has scored 11 goals and provided seven assists in 117 appearances, but he has found it difficult to nail down a starting place.
Keita's time on Merseyside has been affected by injury, which has been highlighted by the fact a hamstring problem has prevented him from appearing for the club since the Community Shield victory over Manchester City.
Despite struggling with injury issues, a recent report suggested that the Guinean playmaker wanted assurances of regular first-team football before agreeing a new contract.
Although his current deal set to expire next summer, according to Christian Falk, Keita will not enter into discussions about a new contract until January.