According to the Daily Mail, Aston Villa and Celtic scouts were both in attendance as Vitoria Setubal took on Sporting Lisbon on Wednesday night, with striker Suk Hyun-jun the target.
Vitoria were hammered 6-0 at home by Sporting in a thumping defeat, with scouts watching South Korean hitman Suk in action - though he didn't have much chance to impress in a huge loss.
Suk, 24, has endured a nomadic career so far, turning out for clubs such as Ajax, Groningen, Maritimo, Al-Ahli, Nacional and now Vitoria, but he seems to have found his home now.
The 6ft 3in target man hit five goals in 21 games last season, but has exploded into life this term, hitting 11 goals in 20 games, whilst he has also notched his first two goals for the South Korean national team during this campaign.
With his reputation growing by the week, teams are now looking to sign Suk, with the Daily Mail reporting that both Aston Villa and Celtic were scouting him against Sporting Lisbon.
Aston Villa have struggled for goals this season, with Rudy Gestede struggling to find the back of the net since his summer move from Blackburn Rovers, and manager Remi Garde may want Suk to not only try and score goals to keep the bottom club in the Premier League, but potentially fire them back to the top flight if they are relegated.
Meanwhile, Celtic have seen Nadir Ciftci make little impact this term, and many fans believe that manager Ronny Deila will be looking to bring in a target man during this month's transfer window.
Suk, with power and aerial ability, would certainly fit the bill - but whether they could beat Aston Villa to his signature remains to be seen.