Career
Maris began his career at Barnsley at under-15 level, signing his first professional contract on 29 May 2014 after a 20-goal season for the under-18s. On 30 January 2015, he went on a one-month youth loan to Nuneaton Town in the Conference Premier. He started on his senior debut the following day, in a 1–0 loss at Forest Green Rovers.
He played nine matches in total, without scoring, in a season which ended with relegation.
Maris was first included in a Barnsley matchday squad on 25 April 2015, for their League One fixture against fellow Yorkshiremen Bradford City at Valley Parade. He replaced Luke Berry for the final 13 minutes of a 1–0 loss.
Eight days later he made his first professional start at Oakwell, as his team concluded their season with a 5–0 rout of Rochdale. On 1 February 2016, Maris was signed on loan for the rest of the season by Lincoln City.
