All-rounder with the physical attributes to match England's Andrew Flintoff, the Queenslander's talent was rewarded initially at the age of 20.
Gives the ball a mighty thump and the pitch similar treatment from his latest remodelled action.
Spent five weeks with Hampshire during the 2004 season and made a dream start in the Frizzell County Championship when he hit an unbeaten 112 on his debut against Somerset.
In the process he became only the fifth Hampshire player in history to score a century in his debut match for the county.
His innings included 16 fours and one six and was made despite batting with a runner following a hamstring injury.
In his last appearance of the season for the county he smashed an unbeaten 97 from 68 balls in the Twenty20 Cup match against Kent Spitfires to secure Hampshire's place in the quarter-finals.
Returned to England in 2005 as part of Australia's one-day squad which won The NatWest Challenge 2-1 against England, having tied The NatWest Series final.
Was left out of the squad for the Ashes so returned to Hampshire as a replacement for fellow countryman Shane Warne.
On his seasonal debut for the county, he smashed 132 from 105 balls with 13 fours and three sixes as Hampshire beat Surrey in the quarter-finals of the Cheltenham & Gloucester Trophy.
That saw Hampshire reach a mammoth target of 359 - the highest successful chase in the history of the competition, beating Sussex’s 329 to beat Derbyshire in 1997.
Watson's knock was also chosen as the Performance of the Round by England's chairman of selectors David Graveney, winning him a bottle of champagne.
He played a prominent role in Australia's ICC Champions Trophy triumph in 2006 and opened the batting but a hamstring injury forced him out of the 2006/7 Ashes series.
Watson overcame a calf problem to help Australia to World Cup glory in the West Indies in 2007.
He re-signed for Hampshire in 2008 to play in the Twenty20 Cup but his call-up to Australia's one-day squad to play West Indies prevented him appearing.