There is an option to make the move permanent for Joe Rodon, who joined Rennes on loan from Spurs.
Rodon joined Spurs in October 2020 and has played in 24 games.
He is a key player for Wales but has failed to break into the first team at Spurs.
"He's a really good central defender," Maurice said.
We need to allow him to be more aggressive defensively.
Even if he didn't play all the matches last season, he will still bring his experience.
Bale asked Spurs to give Rodon more playing time.
Rob Page hoped the defender would be playing week in, week out at domestic level before the World Cup.
Rodon will compete with Arthur Theate for regular game time after first choice centre-back Warmed Omari was ruled out for three months due to surgery.
Rennes will be looking to improve on last season's fourth place finish in the French league, which earned them a place in the group stages of the Europa League.
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