Home favourite Lleyton Hewitt claimed a 6-1 4-6 6-3 victory over top seed Roger Federer to win the Brisbane International title on Sunday.
Hewitt stunned the 17-time grand slam winner by racing through the first set before having to fend off a fightback during the course of a two-hour seven-minute success.
It was former Wimbledon and US Open champion Hewitt's 29th ATP Tour title but his first since 2010, when he also beat Federer to win in Halle.
Federer started poorly and made 22 unforced errors in the first set alone as he was broken to love having previously not lost serve at all during the tournament.
Hewitt, currently ranked 60th in the world, broke his opponent twice more to take the first set in only 27 minutes.
The second set started much the same way with Hewitt holding easily and Federer struggling, but the top seed eventually found his feet and broke serve towards the end of the set.
Federer continued to put the pressure on Hewitt's serve at the start of the decider but it was the Swiss legend who cracked first, being broken in the fourth game when he put a forehand long.
Hewitt then held serve easily to jump out to a 4-1 lead and did not look back for the remainder of the contest.
"I think the most pleasing thing is what I've had to come through and the tough times in terms of surgery," Hewitt said.
"Before the last surgery I made no secret (that) there were no guarantees I would be able to play again at all.
"There were still times when I came back from that surgery and played that Wimbledon straight after it, and I was still doubting whether I was ever going to be pain-free again. For me that's the most pleasing thing."