Neil Lennon is hopeful of adding Cardiff's Joe Ledley to his Celtic squad before the pre-season trip to North America.
The midfielder is one of the most sought after Bosman deals of the summer, and Celtic are now back in the running.
Stoke had appeared to be in pole position to sign Ledley, but no deal has yet been struck to take him to the Britannia.
The Welsh international visited Glasgow last month and was impressed by what Lennon had to say. Ledley has also held talks with AS Roma, but he is still undecided where he wants to play next season.
Lennon identified Ledley as one of his priority signings before he was given the Celtic job and would love to take the midfielder to North America ahead of this month's opening Champions League qualifier.
The new Celtic boss has already signed Charlie Mulgrew and Cha Du-Ri on Bosman deals, and he is anxious to put his own stamp on the squad.
After a weekend spent in Dublin and Lurgan attending question-and-answer meetings with fans, the new Celtic boss was back in Glasgow last night.
Lennon is perusing targets at two levels, with Le Mans' Ibrahima Camara expected at the clubs' Lennoxtown training centre this week for a trial.
The 25-year-old has won 18 caps for Guinea and can play at full-back or in midfield.
Talks remain on-going with Sol Campbell and Jimmy Bullard, but neither is expected to travel on Celtic's four-game trip to North America, which includes a Toronto clash with Manchester United on July 16.
O'Leary takes up Dubai job
DAVID O'LEARY has returned to football management after four years out of the game after he signed a four-year contract with United Arab Emirates side Al-Ahli.
The ex-Ireland international, who managed Leeds and Aston Villa, has been without a job in football since his contract with Villa was cancelled by mutual consent after finishing 16th spot in the 2005-06 season.
O'Leary will be joined at the Arabian club by ex-World Cup-winning captain Fabio Cannavaro, who has insisted that his decision to move to the UAE was not based on money.
"Here, there's not as much pressure as in the leagues I'm used to, and I would like to help the younger players to gain from my experience," Cannavaro said.