Sterling has caused controversy after telling England coach Roy Hodgson he was 'too tired' to face Estonia on Sunday.
"It's tough when you are a young player and he is an explosive player," Giggs told Sky Sports.
"He is a player who is exciting and a player you would go and pay and watch. Of course, he is at Liverpool, who are obviously our biggest rivals.
"He is a talented player. You have to be careful when you are a young player - it is a short career."
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