Tigers starting pitcher Justin Verlander said he's not sure yet if it's time to change his approach after posting a 4.54 ERA in 2014.

"I think it's a little unfair to judge on last season," he said Wednesday, per MLive.com. "I think it's a different story if I go out there this year and it's the same thing. ... I'm not going to judge changing my entire career based on an injury that plagued me last year. I don't think that's the right way to approach things."

Verlander couldn't prepare for the 2014 season as he usually does last offseason since he was coming off core muscle surgery.

"A couple of my off-speed pitches -- my curveball and slider specifically -- against righties, neither one of those pitches were good at all last year," Verlander said. "They just didn't have the same bite. I've already seen a pretty dramatic difference in my curveball. I haven't thrown any sliders yet, but the curveball seems to be a lot better already than it was at any point last year."