Tyson Lomano David Frizell (born 9 October 1991) is a professional rugby league footballer who usually plays as a second-rower for the Newcastle Knights in the NRL.

[3][4][5] Prior to joining the Newcastle Knights, he played for the Cronulla-Sutherland Sharks and St. George Illawarra Dragons in the National Rugby League.

At the conclusion of the 2011 season, Frizell joined the Welsh Rugby League team, and played two tests in the Gillette Four Nations Series.

[citation needed] In his first full NRL season in 2012, Frizell played 10 games for Cronulla but despite some good performances, failed to hold down a regular back-row spot in the starting 17.

At the conclusion of the 2013 NRL season, Frizell re-joined the Welsh team and played another 3 tests in the 2013 Rugby League World Cup held in the United Kingdom.

Upon returning from World Cup duties, St. George Illawarra announced on 11 December 2013 that Frizell had re-signed with the club at least until the end of the 2017 season.

Frizell had attempted to tackle North Queensland player Jordan Kahu but suffered a ruptured testicle after being hit in the groin by accident.

[17] Frizell made a total of 20 appearances for St. George in the 2020 NRL season, in his final game for the club he scored two tries during their 30–22 victory over Melbourne at Kogarah Oval.

[18] Frizell played 19 games for Newcastle in the 2021 NRL season including the club's elimination finals loss against Parramatta.

[19] Frizell played 21 games for Newcastle in the 2022 NRL season scoring three tries as the club missed the finals finishing 14th on the table.