Celtic have moved quickly to bolster their playing squad during the summer transfer window and several moves have officially gone through on Tuesday.

Kieran Tierney agreed to return to Parkhead earlier this year, and his move has finally gone through upon the expiry of his contract at Arsenal, which came to an end on Monday.

The Scotland international, who left the Hoops to sign for the Gunners back in the summer of 2025, is not the only player officially arriving on Tuesday, though, as Ross Doohan has also joined on a free transfer from Aberdeen.

Celtic have also taken advantage of a contractual situation to snap up a deal for 19-year-old centre-forward Callum Osmand, whose deal with Premier League side Fulham expired on Monday.

The teenage striker has joined from the Cottagers' U21 side, but has taken the first-team squad number of 19, and is set to compete for a place in the squad.

What Callum Osmand's role at Celtic will be

The young striker could arrive at Parkhead to fulfill the role that Johnny Kenny played for the Scottish Premiership champions in the second half of last season.

Brendan Rodgers decided to integrate the Irish forward into the first-team squad after his loan spell with Shamrock Rovers, and the 22-year-old forward scored one goal and provided one assist in eight Premiership outings, starting one game.

Celtic have already rejected an offer of £500k from Bolton for the Irishman, and it remains to be seen whether or not he will still be at Parkhead by the end of the summer transfer window.

An exit from Glasgow for Kenny in the coming weeks would open the door for Osmand to take up his role as the back-up centre-forward in the squad.

As you can see in the table above, the Welsh striker enjoyed a prolific career at youth level for Fulham, scoring 54 goals for the U18 and U21 sides combined.

However, he is yet to make a senior appearance for any club to date, which means that it remains to be seen how he will adapt to first-team football. This is why a back-up role initially could make a lot of sense for the teenage talent.

Osmand, though, may not be the only centre-forward to come through the door this summer, as the Hoops may also look for a long-term replacement for Kyogo Furuhashi as an immediate starting-calibre option.

Celtic opted against signing an immediate replacement for the Japan international in the January window, but they should now swoop for a senior addition, and Bojan Miovski is a player who could make a lot of sense.

Why Celtic should sign Bojan Miovski

The Daily Record recently reported that Celtic have shown more interest in signing the Macedonia international than Rangers in the past, and that they would be a more likely destination for the forward.

They have been linked with an interest in signing the former Aberdeen star, who is valued at £9m, from Girona, but it remains to be seen whether or not they will press ahead with a swoop for his services.

The Premiership champions should pursue a deal for the £9m-rated striker because he is a proven performer in Scotland who could hit the ground running as a starting-calibre option, competing with Adam Idah for a place in the starting XI.

This would leave Rodgers with Idah and Miovski as his two senior options, with Osmand as a back-up, and that would free up Daizen Maeda to play out wide.

Miovski's form during his time at Aberdeen in the 2022/23 and 2023/24 campaigns suggests that he has the quality to come in as a better striker than Osmand, who is yet to make his senior bow.

The 26-year-old star's return of four goals in 22 appearances in all competitions for Girona may not excite supporters, but a poor year in the Spanish top-flight does not paint the full picture.

Miovski plundered 44 goals in 98 outings for Aberdeen in all competitions during his two seasons in Scotland, which included a haul of 32 goals in the Premiership.

The left-footed marksman, who was once dubbed a "complete number 9" by journalist Josh Bunting, is a proven goalscorer in the Premiership, which suggests that he could provide an instant threat in front of goal for the Hoops next season.

As you can see in the table above, the Macedonia international was a consistent performer in front of goal for the Dons in the Scottish top-flight, firing in 16 goals in both of his seasons at Pittodrie.

Daizen Maeda, with 16 strikes, was the only Celtic player who scored more than ten league goals last season, which suggests that Miovski would be one of the biggest goal threats, if not the biggest, within the Hoops squad if he can get back to that form.

The Girona forward also has a record of four goals in nine games against Rangers in his career to date, which suggests that he could be a fearsome opponent in the big games for Rodgers next term.

Overall, Miovski is a proven Premiership performer in the prime years of his career, at the age of 26, which is why he would come through the door as a much better striker, in the here and now, than Osmand, who has not proven himself in any league at senior level to date.

This is why Celtic should swoop to rescue the centre-forward from Giorna before the end of the summer transfer window, to provide Osmand with a fantastic attacker to learn from next term.