in the 2017–18 season, it was announced that his contract wouldn't be renewed and he would be leaving at the end of the season. In March 2020, Wallace drew criticism when he commented positively about the departure of manager Carvalhal. Manager Carvalhal responded to Wallace's claims by tweeting on his Twitter account: "Ross did a very good contribution in the first 2 seasons and I must respect this...." Fleetwood Town Following his release by Sheffield Wednesday, Wallace went on trial at Wigan Athletic and was featured in a friendly match against Tranmere Rovers on 14 July 2018, but failed to win a contract despite impressing the club. He then went on trial at EFL League One club Fleetwood Town. On 21 September 2018, following a successful trial period, Wallace joined the club. The following day, he made his debut for Fleetwood Town, coming on as a 59th-minute substitute, in a 1–0 loss against Southend United. Since joining the club, Wallace quickly established himself in the first team, playing in the centre midfield position. At times, he rotated in playing in different positions in the defence and midfield. On 18 October 2018, Wallace signed a contract with Fleetwood Town for the rest of the 2018–19 season. He then scored his first goal for the club and set up the opening game of the game, in a 3–2 win against Blackpool on 27 October 2018. Since joining Fleetwood Town, Wallace appeared in every match until he missed two matches, due to suspension. After serving a two match suspension, Wallace returned to the starting line–up against Walsall on 9 March 2019 and played 72 minutes before being substituted, in a 2–0 loss. Following his return from suspension, he continued to regain his first team place, playing in different midfield positions for the rest of the 2018–19 season. At the end of the 2018–19 season, Wallace went on to make thirty–eight appearances and scoring once in all competitions. Following this, he was offered a new contract by the club. On 10 August 2019, Wallace agreed to sign a contract with the club. However, he appeared four matches for Fleetwood Town, coming from the substitute bench. Having made four appearances in all competitions, the club announced the departure of Wallace despite recently signed a contract. St Mirren After five months without a club, Wallace signed a short-term contract with Scottish Premiership club St Mirren on