McGurk made his debut for Australia in the ODI series against West Indies this month. While he scored just 10 runs on his ODI debut, he managed to score an 18-ball 41 in the final ODI and impressed with his hitting.
The right-handed batter who has the ability to bowl both pace and off-spin, will link up with his new teammates in Bristol in late May. The 30-year-old has played for Tasmania in Australia's domestic competitions since 2014. He amassed 554 runs at an average of 61.55 in this year's Sheffield
Melbourne Stars has re-signed Australia's star all-rounder Marcus Stoinis for a three-year contract extension until the end of Big Bash League (BBL)|16.
Australia batter Tim David joined MI Emirates in the International League T20 after his stint in the Big Bash League ended with Hobart Hurricanes failing to qualify for the BBL qualifiers.
Australia batter Matthew Renshaw will be released from Australia's first Test squad for West Indies to feature in Brisbane Heat's Big Bash League Qualifier match with Sydney on Friday.
Marsh, 40, retires from the sport following the retirement of his long-time Renegades and Aussie teammate Aaron Finch. In the last season, Marsh had called time on his first-class career with Western Australia.