Patterson is a product of Sunderland’s academy and made his senior debut for the Black Cats in a 2-1 EFL Trophy loss to Fleetwood Town in 2020-21.
He made his league bow in the following season and, after joining Notts County on loan for the opening half of the 2021-22 campaign, he helped Sunderland gain promotion into the Championship via the League One play-offs.
In 2024-25, Patterson featured 45 times in the Championship as his side beat Sheffield United in the play-off final at Wembley to gain promotion into the Premier League.
Having featured just once for the top-flight side in the first half of last season after falling behind Robin Roefs in the pecking order, Patterson spent the second half of the campaign on loan at Millwall.
He featured 16 times across all competitions for the Lions.
Patterson – who has made 169 competitive appearances for the Black Cats – featured as a substitute for Sunderland as Regis Le Bris’ side beat Wrexham 1-0 in a pre-season friendly at Philadelphia’s Subaru Park on 2 August.
Wrexham have already added full-back Danny Imray and midfielder Ben Whiteman to their ranks this summer.
But speaking ahead of his side’s 1-0 loss to Middlesbrough in the first round of the Carabao Cup, Parkinson said there was still work to be done on the squad.
“We feel we’re not where we need to be yet and we know that,” he said.
“We’re working, as ever, to make sure that the squad is as strong as it needs to be in what is going to be an incredibly competitive division.
“We’re under no illusions about that. We’ve got to make this squad so strong and we are working tirelessly to bring those extra players in to give everybody a boost.”