The Israeli played alongside Torres during his magnificent three-and-a-half-year spell at Liverpool, where he bagged 81 goals in 142 matches.
But the Spaniard has endured a difficult time since his £50m switch to Stamford Bridge and, while he has shown glimpses of his previous form under new boss Rafael Benitez, who signed him at Anfield, Benayoun is concerned he will never be the same player.
"You can understand it is not easy, from being the top striker at Liverpool - he was unbelievable, you gave him the ball and you knew he would score," Benayoun said.
"But he had a bad time in the beginning at Chelsea. When he came in, he was on the bench, then on the pitch.
"He did not get the confidence when he came in. And with the £50m above his head, it is not easy for any player. The situation from the beginning was badly managed with him."
Torres has scored just 25 times in 134 appearances for Chelsea but, with 15 of those goals coming this season, it appears that the 28-year-old is beginning to rediscover his confidence.
"For me, he is still one of the best strikers in the world," added Benayoun. "You do not change so quick from being one of the best in the world, to a player that some people say is not good enough for Chelsea.
"He has had good spells, bad spells, and has 15 or 16 goals already. That is not bad, but hopefully he will finish with 25.
"He just needs to believe in himself. It would be good to get his confidence back and be his old self. Hopefully he will get a few more soon and you will see the real Fernando Torres."
@redgenesis. He'll never be a top player again. At any team. I'm lucky enough (!?) to be able to watch Chelsea play fairly regularly, which means I have managed to watch Torres live on many occassions over the past 2 years. Honestly he is rubbish. (relative to the level he is playing at). I have seen too many wasted chances , miscontrolled passes and him kicking it straight out of play (as he does quite often). The problem he has is he does not offer anything other than goals. so when he doens't score (most of the games he plays) then Chelsea are effectively playing with 10 men. He really is very bad.- cozens