The former midfielder was disappointed by the side's poor decision making.
There was big anticipation for Thursday’s Europa League clash as Jurgen Klopp took charge of a Liverpool game at Anfield for the first time.
Things did not go well for his side, though, as the Reds had to battle from a goal down and then struggled to create any clear cut chances to secure all three points, with another laboured display beyond produced by the Merseyside outfit.
And McManaman says the most frustrating aspect was their lack of decisive play throughout.
"You expect them to be able to play a different way; there was no width tonight at all," he told BT Sport.
"There was no decisive play today and that is what was the most frustrating thing, they had lots of possession but anyone can have lots of possession when you play that slow."
The Reds were hit by a sucker punch as the visitors took an early lead, with the first goal coming from Nathaniel Clyne’s failure to track a Rubin Kazan forward and allow him past to net the opener.
That made Anfield nervy and Liverpool would have fallen two behind had Simon Mignolet not saved well - and McManaman says their failure to score goals is putting pressure on their defence.
"It’s decision making again, you put yourself a goal down and you can feel everyone panicking," he added.
"It’s very frustrating all round, when you know you have to score three to win a game, every single game, you can feel the anguish. It was not enough."
Liverpool host Southampton for Klopp's first home Premier League game in charge of the Anfield outfit on Sunday afternoon.