Andy Reid remains unsure when Patrick Mahomes will return for the Kansas City Chiefs, but the star quarterback is increasing his workload in practice.

Mahomes suffered a knee injury during the Chiefs' 30-6 win over the Denver Broncos on October 17.

The 2018 NFL MVP was expected to miss three weeks so could make a return against the Tennessee Titans on Sunday.

Chiefs head coach Reid is still unsure if the 24-year-old will be available, saying Mahomes still had work to do to prove his fitness.

"I think it's going to be day to day," he told a news conference on Wednesday.

"We've got to see how he handles [it], he didn't take a ton of reps last week so we'll try increase them here a little bit and see how it works out."

Despite Mahomes' injury, the Chiefs are 6-3 this season and sit top of the AFC West.