Moises Henriques will return to Surrey this summer two years after his first stint at the county was prematurely ended after only three appearances because of a serious jaw injury.
An accidental collision with team-mate Rory Burns in a NatWest T20 Blast game against Sussex at Arundel left Henriques with a broken jaw in three places, and required three surgeries to fix.
But Henriques, who has played four Tests, eight one-day and nine Twenty20 internationals for Australia, made a full recovery and has admitted he has "unfinished business" with the county.
The all-rounder will once again play in the domestic T20 competition, providing cover while former Sri Lanka batsman Kumar Sangakkara competes in the Caribbean Premier League.
He told Surrey's official website: "I'm really happy to be returning to Surrey, a great club where I really enjoyed myself in 2015.
"As well as feeling like I've got a bit of unfinished business, the NatWest T20 Blast is well established as one of the top T20 competitions in the world and I'm really looking forward to playing against some of the world's best cricketers in front of sold out London crowds at the Kia Oval."
Henriques will link-up with compatriot Aaron Finch, who will be available for the entirety of the competition, while Surrey further swelled their batting ranks earlier this month by re-signing Kevin Pietersen.
Surrey director of cricket Alec Stewart said: "It's great to have Moises back at Surrey after his injury in 2015.
"As well as being a quality individual, he has great T20 experience from all around the world and will add plenty of balance to our side."
