Celtic have taken Le Mans defender Ibrahima Camara and Vojvodina forward Slaven Stjepanovic on trial.
New Bhoys boss Neil Lennon is keen to bolster his squad and he will cast an eye over Camara and Stjepanovic in pre-season training.
Camara is believed to be available following Le Mans' relegation to Ligue 2 and the Guinea international is equally adept at playing at in defence or midfield.
Le Mans have confirmed they have given Camara permission to spend a week on trial at the Glasgow giants.
Montenegrin striker Stjepanovic has been linked with Celtic in the past and now he will get the chance to impress the club's coaching staff during his stint in Glasgow.
Lennon is also thought to be looking at a number of other trialists as he weighs up moves to strengthen his side ahead of the new SPL season.