Bryce Harper is NOT a bust ... and his $330 MILLION contract WILL pay off for the Phillies -- so says Philadelphia superfan Miles Teller!!!
"I think it's a good investment!"
Of course, Harper has been a disappointment for the Phils since inking a 13-year contract this offseason ... he's batting just .248 with 22 home runs.
But, Teller -- who's been a die-hard Phillies supporter since he was kid -- didn't seem too concerned about the outfielder when we got him out in Bev Hills this week, saying he believes Harper will bounce back, eventually.