VERSATILE big man Levi Casboult has committed to a one-year contract extension at Carlton.

The Blues have also signed rookie Matthew Cottrell to a new one-year deal after an impressive season in the VFL.

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Casboult will enter his 11th year at Ikon Park, having played 124 games and kicked 132 goals since arriving at Carlton via pick No.44 in the 2010 AFL Rookie Draft.

The 29-year-old's versatility was a feature in 2019, with his strong marking and physical presence used at both ends of the ground.

Renowned across the competition for his ability up forward, Casboult showed promise in the ruck and shone in defence when he was thrown down back mid-way through the season.

Levi Casboult playing Geelong forward Tom Hawkins in round 23

This ability and willingness to adapt to different positions from week-to-week saw Casboult deservingly win the 2019 Coaches Award as well as earn a top-five finish in the 2019 John Nicholls Medal.

The beloved big man delivered a career-best season, averaging six marks and three tackles per game, whilst also ranking elite in the competition for hitouts, hitouts to advantage, contested marks, marks inside 50, and tackles inside 50.

He is the only player in the Blues' 155-year history to don the No.41 in 100 AFL matches.

Cottrell will join Casboult in the navy blue for 2020 after arriving at Ikon Park as a rookie through the Pre-Season Supplemental Selection Period.

Matthew Cottrell takes a strong mark for the Northern Blues in the VFL

The 19-year-old showed promising signs in a number of different roles for the Northern Blues in 2019.

As an elite endurance runner, Cottrell looked comfortable across half-back and on the wing throughout his 15 VFL appearances, averaging 13 disposals and showcasing his football smarts with ball in hand.

Cottrell's best performance of the season came in round 10 against Coburg, when he put together 18 disposals off the wing and booted two classy goals.