Kasper Hogh has arrived in the UK as he prepares to undergo his Celtic medical.
The Bodo/Glimt striker is due to go through his tests in London before signing his contract on what is expected to be a Hoops record of £11million plus add-ons.
Hogh's deal is to be a four year contract with the Scottish champions also having the option of a further year should they wish to keep the forward beyond his initial agreement.
Sky Sports cameras caught the Danish international after he landed in London with his representation.
Celtic had hoped to land the goal scorer back in January but the player opted to remain at Bodo following their Champions League exploits. He enjoyed a stellar campaign with five goals in the tournament and 15 across all competitions for the club.
He also chipped in with 11 assists and is on the verge of becoming Celtic's second signing of the summer window having already snapped up Camilo Duran of Qarabag.
It comes amid Celtic's pursuit of Mika Baur of Paderborn.
The German under-21s international is wanted on a £4m deal from the 2. Bundesliga outfit but no agreement has yet been struck.
An initial offer from the Hoops has been booted into touch by Baur's club after their sporting director, Sebastian Lange, confirmed they had rejected it.
He said: "We didn't have to think twice during this transfer window.
"There are a few players (we have received offers for). And that’s nothing unusual. There were even players involved whom you wouldn't expect. Four to five. That includes players from the U21 squad. It’s not as if we have offers for four key players.
"I don’t want to name names, because I don’t want to spoil the market for one or two of them. For SCP, the transfer fee alone isn't the deciding factor anyway; rather, a transfer has to make sense both financially and in sporting terms.
"We have a squad valuation that we calculate internally using a specific formula. There is a sporting value and a financial value.
"The question is: How important is the player to us, and can we actually strengthen the squad? Because only then does it really make sense to let a player go. We want to improve.
"It’s independent of any departures. We want to strengthen the squad either way. And, ideally, keep all the players—or almost all of them.
"We are no longer operating at a loss. We aim to finish the Bundesliga season with a profit, too. We are no longer dependent on transfer revenue like we were in the 2. Bundesliga. We can work with different figures.
"Our job remains to stay calm. But we are certainly noticing right now that the transfer rumor mill is starting to heat up. And that’s only going to increase. We have a long, intense period ahead of us."