Southampton have completed the signing of Republic of Ireland attacking midfielder Finn Azaz from Middlesbrough following Mateus Fernandes' exit to West Ham.
Saints announced the 24-year-old's arrival for £12m plus add-ons shortly after confirming the Portuguese's exit in a £40m-plus deal.
Azaz has signed a four-year deal at St Mary's and is expected to be followed by a number of other arrivals before Monday's transfer deadline.
"It feels amazing," he said. "Obviously it's been talked about for a little while and I'm really happy to be here.
"I'm really, really excited to prove I can play for a Premier League club. I know we're in the Championship now, but we're trying to operate at Premier League level to ultimately get promoted, win the league and get back to the Premier League."
Swansea-linked Adam Idah (above) was absent from the open part of Celtic's training session on Friday morning as the club’s transfer activity intensified ahead of Sunday’s trip to face Rangers.
Uruguayan left-back Marcelo Saracchi was present ahead of the anticipated confirmation of his move from Boca Juniors.
As was 24-year-old Belgian winger Michel-Ange Balikwisha, whose transfer from Royal Antwerp was announced by Celtic on Thursday night.
But Idah looks set to depart having reportedly travelled to South Wales for a medical after Swansea succeeded with an offer worth up to £7m for the Ireland striker.
The Swans, managed by Athlone's Alan Sheehan, are currently 13th in the Championship after one win, one draw and one defeat.
The 24-year-old was briefly Celtic’s record signing, before the £11m arrival of Arne Engels last summer, after enjoying a fruitful loan spell from Norwich.
Idah hit 20 goals for Celtic last season but struggled to win over a number of fans and failed to score in the early part of this campaign.
However, Celtic boss Brendan Rodgers has insisted that Idah will be going nowhere unless he is guaranteed a replacement.
The striker was absent from Celtic's training session on Friday morning as the club's transfer activity intensified ahead of Sunday's trip to face Rangers.
After seeing his calls for attacking reinforcements largely go unheeded for the vast majority of the transfer window, Rodgers took a firm stance.
"There's interest in Adam but obviously no-one can leave here unless we get players in to replace," he said. "It's as simple as that.
"There's been negotiations and chat around it, but I have to have players in here before I can consider letting anyone go."
Rodgers was stung by a scenario in January when the club sold Kyogo Furuhashi to Rennes with about a week left of the window, and failed to replace their main goalscorer.
Meanwhile, winger Yang Hyun-jun has been linked with Birmingham.
"I just think it's logical and it's common sense," Rodgers said. "We're really light in that area of the field.
"And I'm pretty sure there would be a number of clubs that would want some of our players, but there's absolutely no way we can move anyone out unless we have absolute guarantees that there's going to be people to come in to replace."
Rodgers added: "It's been ongoing for Yang for a little while. And I understand that when you're a player that's probably been mostly used as a squad player over a couple of years, there comes a point when you maybe want to move on and play.
"But I've been unable to do that because we've needed Yang here. But I also know that if he does stay, he has a contribution to make, because we need five, six wingers because of the number of games we play, the intensity that we want to play.
"But there has been interest in him. But yet again, I repeat, I can't really do anything unless we have players in."
The Cork native will link up with Heimir Hallgrimsson's Republic of Ireland squad next week ahead of World Cup qualifiers against Hungary and Armenia, as will Azaz.
Republic of Ireland women's international Jess Ziu has gone to WSL 2 side Bristol City on loan from West Ham for the season.
The 23-year-old is back to full fitness after suffering a second ACL injury 11 months ago.
Having spent nearly a year out on the sidelines, Ziu returned to the pitch in a behind-closed-doors friendly with Charlton Athletic earlier this month.
The midfielder will now spend the 2025/26 campaign at Bristol City, where she'll look to get minutes under the belt and force her way back into Ireland boss Carla Ward's plans for the Nations League play-off against Belgium.
