However, Lennon was left sweating on the fitness of
Ajer with the first derby of the season against Rangers looming, while Odsonne Edouard left the field with cramp.
Ajer went off with a groin strain during the Hoops' Europa League win over AIK and was rated as a major doubt for the Ladbrokes Premiership clash at Ibrox.
And while the
Ajer setback was a sickener there was plenty to purr about.
And ahead of Tuesday night's return against Cluj, in which a goalless draw or victory by any margin will be enough to carry them into the competition play-offs, he hailed
Ajer as equally invaluable.
Stephen Robinson strengthened Well over the summer, especially in the forward areas, so the Celtic gaffer was taking a risk with
Ajer filling in at full-back, while PS7m man Christopher Jul lien was partnered with Nir Bitton.
Ajer played in a poor 1-1 first leg at Parkhead against AEK's 10 men and was suspended for the return as Brendan Rodgers' side crashed out.
Asked if
Ajer was up to an Old Firm game, Rodgers said: "I would have no hesitation.
Jeff
Ajer joined BioMarin in 2005 and is the executive vice president and chief commercial officer.
Furthermore, for the second year in a row, 'Al
Ajer' initiative will launch an online competition on its Twitter page, that sees a question being posted to the public on Sunday of each week throughout the holy month of Ramadan, about the slogan of the initiative.
Ajer - Celtic's most consistent defender this season - limped off with a groin strain inside 15 minutes to add to Lennon's defensive woes, with Hatem Abd Elhamed and Jozo Simunovic missing the play-off second leg through injury.
SUBS ANTHONY RALSTON 6 Thrust in at right-back for crocked
Ajer in 15 minutes and did fine.
Zenit St Petersburg approached Celtic with a view to holding talks with defender Kristoffer
Ajer, but were put off by the club's valuation of the 21-year-old, according to reports.