Carlos Brathwaite is headed back to the BBL after re-signing with Sydney Sixers as they chase a hat-trick of titles.

The West Indies allrounder was a key part of the Sixers' title last season, particularly with the ball taking 16 wickets for the season. He claimed 4 for 18 in a win over Brisbane Heat and took 1 for 25 from four frugal overs in Sixers' Qualifier win over Perth Scorchers which secured them a home final.

Brathwaite, 33, had a lean season with the bat, but he did hit 21 off 12 balls to help Sixers steal an amazing win from Melbourne Stars on the Gold Coast early in their campaign and he cited Sixers' title ambitions as a key reason for his return.

"Obviously winning [BBL 10] and the team's success last year made it attractive to want to come back," he said. "As you get older you definitely want to be somewhere you can hopefully be challenging for trophies but at the Sixers, there is a deeper camaraderie and sense of family atmosphere.

"As a team, we went through a tumultuous season last year on the road without getting back to Sydney until the final, and we built a very strong bond. The BBL is one of the biggest T20 tournaments in the world and hopefully, that bond can help us to succeed again, this time in front of our fans at the SCG all season."

Brathwaite joins Englishman Tom Curran in Sixers' squad as the only two overseas at present. Curran withdrew from last season's BBL due to bubble fatigue but is expected to return to Sydney this season.

Sydney Sixers squad: Moises Henriques (capt), Sean Abbott, Carlos Brathwaite (West Indies), Daniel Christian, Tom Curran (England), Ben Dwarshuis, Jack Edwards, Mickey Edwards, Daniel Hughes, Stephen O'Keefe, Hayden Kerr, Nathan Lyon, Ben Manenti, Josh Philippe, Lloyd Pope, Jordan Silk.