The former Liverpool striker was speaking at half-time, when the Reds were losing 1-0 to the Swiss side. A Steven Gerrard free-kick meant the Anfield outfit ended up drawing 1-1 but that result was still not good enough for progression to the knockout stages.
Before the second half, however, Liverpool showed no sign of even threatening in front of goal. And Fowler singled out Welshman Allen for criticism, suggesting he sometimes looks like 'a little boy.'
“I would have brought Lallana on for Allen [at half-time]. I think Allen looks like a little boy at times," Fowler said on ITV Sport.
At full-time, the former striker said: “Liverpool’s performance was better after the red card [for Lazar Markovic]. It wasn’t until twenty minutes to go that the players and even the crowd thought we could get something.
“Liverpool finished the stronger team [but] we didn’t really get any chances or attempts tonight.”