|Birth name||Carl Kirwan|
|Date of birth||21 March 1991|
|Place of birth||Durham, England|
|Height||1.91 m (6 ft 3 in)|
|Weight||110 kg (17 st 5 lb; 243 lb)|
|Rugby union career|
Kirwan made a significant impact during his campaigns at London Welsh previously captained the side, scoring eight tries in 24 Championship appearances and helped the club beat Bristol to win promotion to the Aviva Premiership, and was subsequently named Supporters Club Player of the Year.
- "Worcester Warriors sign London Welsh flanker Carl Kirwan". Warriors. 16 June 2015. Archived from the original on 10 February 2015. Retrieved 1 July 2017.
- "BACK ROW ADDITION". Nottingham Rugby. 2020-06-26. Retrieved 2020-06-27.