Patterson, 26, came through Sunderland's academy and established himself as the club's first-choice goalkeeper during their promotion from League One in 2022. He played a key role as Sunderland made it to the Premier League via the playoffs in 2025. However, he lost his place following the arrival of Robin Roefs and made just one appearance for Sunderland during the first half of last season before joining Millwall on loan in February. Patterson made 14 Championship appearances during his spell at The Den.

A move to Wrexham would reunite Patterson with Phil Parkinson, who handed the goalkeeper his Sunderland debut in 2020. Patterson would add further competition in goal for Wrexham, but could be a long-term replacement for Arthur Okonkwo and Danny Ward, who are both in the final years of their respective contracts. Wrexham have already added Danny Imray from Crystal Palace and Ben Whiteman from Preston North End this summer as they prepare for another season in the Championship.

Patterson is set to undergo a medical before completing the move and could feature for his new club in their Championship opener against Cardiff City on Monday. The final value of the deal is dependent on add-ons, which could see the transfer exceed other deals, including the one that brought Nathan Broadhead to Wales, which will reach £10 million if clauses are met.