Brendan Rodgers praises young Celtic duo's performances against PSG

Paris Saint-Germain's Brazilian striker Neymar (L) gestures to Celtic's Scottish defender Anthony Ralston during the UEFA Champions League Group B football match between Celtic and Paris...

Celtic played two very young full-backs against the French club.

Celtic manager Brendan Rodgers  looks on during the UEFA Champions League Group B match between Celtic and Paris Saint Germain at Celtic Park on September 12, 2017 in Glasgow, Scotland.

Celtic manager Brendan Rodgers has been speaking to the club's Twitter account following his side's 5-0 defeat to Paris Saint-Germain, and despite that humbling loss the Bhoys boss had nothing but praise for two of his young players.

Celtic started 18-year-old Anthony Ralston and 20-year-old Kieran Tierney in their opening Champions League group match and the pair came face-to-face with Kylian Mbappe and Neymar.

(L-R Back Row) Celtic's Scottish goalkeeper Craig Gordon, Celtic's Croatian-born Bosnian defender Jozo Simunovic, Celtic's French midfielder Olivier Ntcham, Celtic's Scottish defender...

It is fair to say things did not go according to plan, but the young Celtic pair will have learnt a lot from coming up against two of the most expensive footballers in the world.

"I (have) seen my two young full-backs playing against Mbappe and Neymar," Rodgers said. "I thought they did exceptionally well."

Both PSG players got on the score sheet but in honesty few clubs in the world could keep the club's expensively assembled forward line at bay.

Paris Saint-Germain's Brazilian striker Neymar (L) gestures to Celtic's Scottish defender Anthony Ralston during the UEFA Champions League Group B football match between Celtic and Paris...

Big things are expected of Ralston and Tierney, with the latter already making himself indispensable to Rodgers' side, and in years to come they may look back on Tuesday's defeat and accept that it turned them both into better players.

They will be hoping to do better for the rest of Celtic's European campaign but things are not going to get much easier with Bayern Munich and Anderlecht to come later this year.

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