The Liverpool manager took a gamble by substituting his star striker after 63 minutes with the scoreline locked at 1-1 against Fulham at Craven Cottage on Saturday.
It backfired when Fulham scored two more goals for a 3-1 victory which left Liverpool's Premier league title hopes in tatters.
Benitez, however, had no regrets at taking off Torres, who took four days to recover from an 80-minute appearance against Manchester United at Anfield last Sunday.
Benitez said: "We needed to do something to protect the player. We were more or less in control of the game. If we had left him on the pitch maybe we would have lost the player for a month.
"It was a difficult decision but we decided to start with him because he can do a proper warm-up. But we decided to take him out at 60 minutes. The last time he played 80 minutes it took him four days to be fit."