Merrett is a three-time All-Australian and five-time Crichton Medallist; he also won the Yiooken Award in 2023 and the Anzac Medal in 2024.

He played every game for Vic Country and impressed in many; he took that form into the end of the TAC Cup season, where he was a consistent contributor for the Sandringham Dragons.

[6] He was rewarded with a nomination for the 2014 AFL Rising Star after he collected 22 disposals, three tackles, and two goals in the round 11 win against Richmond.

[8] In August, following Essendon's 87-point loss to the Western Bulldogs in round 18, it was announced that he would miss the remainder of the season with a major stress fracture in his foot.

[9] In round 21, 2016, he became the third-youngest match-day captain in Essendon history when he led the side against Gold Coast at Etihad Stadium.

Merrett went on to return to near his best football during the 2019 season, which was capped off with a second club best and fairest award, comfortable suppassing new Essendon recruit Dylan Shiel.

[16] The Essendon midfielder produced another brilliant season in 2020, averaging 26.3 disposals and 4.3 marks, a statistic ranked elite by Champion Data, in shortened quarters to finish second in the Crichton Medal.

This fact was made apparent in Essendon's round 11 win over the West Coast Eagles, where the duo would combine for 73 disposals, 13 inside-50s, 12 clearances, and 9 tackles.

After continuing his good form through to the midway point of the season, Merrett, on June 17 2021, re-signed with the Essendon Football Club on a 6-year deal until 2027.

[26] He was regarded as one of the best footy decision-makers out of the 2013 AFL draft pool and uses his left foot as a penetrating weapon to spot up teammates inside the 50-metre arc.