Lennon was none too pleased with the US head coach after seeing his defender return from international action with just a one-minute appearance to show for his trip.
Lennon was speaking to the Bolton News ahead of his side’s 1-1 draw with Blackpool, when he slated head coach Klinsmann for calling up Ream for the games against Denmark and Switzerland just to give him a one-minute cameo in the latter match.
I haven't spoken to Tim on the matter yet, but I'm not too sure you can treat players like that,” said Lennon. "You bring them all that way, train for 10 days, and have two games, but get one minute – it's pretty poor.
"I understand the coach might want him integrated into the squad and doing a bit of training here and there, but if he's only going to play a minute of football, we'd much rather have him here where he can have some rest and train for a week with his club in preparation for what is an important two games this weekend."
This is the second time in six months that Lennon has criticised Klinsmann’s treatment of Ream, having also hit out at the Tottenham Hotspur legend following the 13-times capped international’s November call-up for a 4-1 loss in Ireland.
The former New York Red Bulls man was drafted in as a late replacement for the injured John Brooks ahead of the trip to Dublin, having failed to make the initial 25-man squad which faced Colombia at Craven Cottage, but would go on to see just four minutes of action.
"I've had this conversation before, he comes on with a minute to go against the Republic of Ireland when the team are already 4-1 down and what that achieves I don't know," added Lennon.
"We don't discourage any player from going out and playing for his country. But if that's the way things are going to go, I'm not so sure."
Considering Ream’s solid form for Bolton this season, a fair chunk of US fans and media were also left somewhat baffled at his lack of international action over the past fortnight.
The versatile defender is one of a just a few Americans getting regular minutes in a respected European league at the moment but, for whatever reason, has continued to struggle to break into Klinsmann’s line-up.
Granted, the likes of Omar Gonzalez, Matt Belser, Geoff Cameron, John Brooks and Michael Orozco have provided strong competition but, with the former three all being left out of the recent squad for experimental reasons, there’s good reason to be confused at the treatment of Ream.