Mats Deijl

He made his professional debut in the Eerste Divisie for FC Den Bosch on 16 December 2016 in a game against Fortuna Sittard and was added to the Den Bosch first team squad a few weeks later. On 4 January 2017, the club announced that Deijl had been permanently promoted to first team. On 16 June 2021, Deijl signed a three-year contract with recently promoted Eredivisie club Go Ahead Eagles. He made his debut in the Eredivisie for the club on 13 August 2021 in a 1–0 home defeat against SC Heerenveen. In April 2025, he played and was the goalscorer for Go Ahead Eagles in the final of the KNVB Cup as the club won the trophy for the first time in their history, winning on penalties against AZ Alkmaar on 21 April 2025. The game had ended 1–1 in normal time after Deijl scored a 98th minute equalising penalty for his side after Peer Koopmeiners was penalised for a handball. He then also successfully scored the first penalty in the subsequent shoot-out.

Feyenoord

On 24 January 2026, Deijl joined Dutch side Feyenoord on a 2.5 year contract, with an option for another year. He made his debut the next day, starting in a 4–2 home win against Heracles Almelo and providing the assist for Feyenoord's third goal.

As of match played 13 September 2026

Deijl was born in Vlaardingen, but grew up in Maasland, Netherlands. In December 2023, Deijl confirmed his Singapore – which was part of British Malaya at the time – ancestry through his father's side. When asked about his Singaporean heritage, Deijl stated, "Yes, really far away on my father's side. I don't even know how far". In addition, due to FIFA rules, he also cannot represent Malaysia in international football as his ancestry is through a great-grandparent rather than a grandparent.

Go Ahead Eagles

KNVB Cup: 2024–25 Individual

Eredivisie Team of the Month: April 2025