Niels Fleuren

Emmen and TOP Oss On 15 July 2016, it was announced that Fleuren had signed a one-year contract with Emmen.

Ahead of the 2017–18 season, Fleuren joined TOP Oss on an amateur contract, where he soon developed into a regular starter and was rewarded with a one-year professional contract at the end of the season. In January 2019, he extended his contract with Oss by another year.

In the 2020–21 season, Fleuren would again play for TOP Oss in an amateur deal. In October 2020, Fleuren tested positive for SARS-CoV-2 during the COVID-19 pandemic. While in quarantine at home, he continued working as the TOP Oss contact person for social projects, where he organised activities such as a footgolf event for a clothing sponsor. He had been a part of the office staff of the club since signing an amateur playing contract.

Later career On 22 June 2022, Fleuren joined Tweede Divisie club De Treffers on an amateur contract, after having decided to retire from professional football. After six months, he moved to Derde Divisie club Gemert on 1 January 2023.

In May 2023, he returned to his first club Vitesse '08 in the ninth-tier Vierde Klasse after 26 years. He retired after one season.

Honours VVV-Venlo Eerste Divisie: 2008–09