Horwill started his Super Rugby career with the Queensland Reds, playing 116 matches and captaining the side to the 2011 Super Rugby championship.
The lock, nicknamed Kev, made his Wallabies debut in 2007 and narrowly missed out on that year's World Cup squa.d
His time would come four years, captaining the Wallabies in the 2011 Rugby World Cup, capping off a dream 2011 season.
Horwill was a surprise omission from the 2015 Rugby World Cup squad and the Queensland veteran made the move to English club Harlequins at the end of that season.
