Jordan Archer has joined on a short-term deal until the January window.
The 27-year-old Scotland international goalkeeper has been drafted in following a knee injury to Trevor Carson which will keep the Northern Irishman out of action for several months.
“We’ve moved quickly after learning that Trevor would be out for a prolonged period,” said manager Stephen Robinson of the move, which is subject to international clearance.
“To be able to bring in a ‘keeper of Jordan’s quality is fortunate and he will challenge Aaron Chapman for the jersey.
“Jordan has been capped by Scotland and played games in the Championship and League One in England. He arrives with a strong pedigree.
“We had a decision whether to bring someone else in or bring back PJ Morrison from his loan at Falkirk.
“Given that PJ is likely to play for them this weekend and stake a claim for a regular spot, we felt it was best for his development to remain there.”
Archer came through the ranks at Tottenham Hotspur, spending four years at White Hart Lane.
Although he never tasted first-team football, he enjoyed five separate spells out on loan, gaining experience from the Southern Football League to the Championship.
It was whilst with his last loan club, Millwall, where he impressed enough to earn a permanent move following the expiry of his contract at Spurs.
He was the new number one at the New Den, earning the Player of the Year vote in his debut season.
The Lions were promoted back to the Championship in his second season, and it was around that time the Londoner received his first call into the Scotland squad under boss Gordon Strachan, owing to his Clydebank-born grandparents.
He made his full international debut against Peru in May 2018, on the same day future team-mate Stephen O’Donnell also made his first outing in dark blue, together with then ‘Well player Chris Cadden. That added to his 23 caps gained at Under 19, Under 20 and Under 21 level for the national team.
Archer left Millwall last summer and had short spells with League One side Oxford and Premiership-bound Fulham before Covid-19 paused the season.
“I’m glad to be here, and I’m ready if called upon,” said the goalkeeper.
“It’s an opportunity for me to try and play games. It’s my first time playing club football in Scotland, and I am looking forward to the new challenge.”