Johnny Damon says the Yankees’ 2009 World Series title would “absolutely” be diminished if his former Bombers teammate Alex Rodriguez used performance-enhancing drugs to slug his way to a .365 postseason average and a club record 18 RBI through the three playoff series.

“I really haven’t gotten to think that far but if that’s how he was able to hit in the postseason like he did that year then yeah absolutely” Damon said Wednesday on MLB Network Radio on Sirius XM. “Then you start going ‘Was anybody on (another) team cheating?’ There’s just so many different factors that determine if a team wins and A-Rod was a huge determining factor. He played a pretty huge part.”

Rodriguez was suspended for 211 games on Monday in connection with the Biogenesis drug scandal but the embattled slugger is fighting the punishment. The Players Association formally filed an appeal Wednesday. Twelve other players linked to the case accepted 50-game bans without contesting.

Damon told the Daily News that “anything with a connection to PEDs Alex’s name is going to come up.”

“It would be a shame if that’s the only reason we won against the Twins Angels and Phillies (the Yankees’ three playoff opponents in ’09)” Damon said when asked about the reported evidence MLB has against A-Rod which connects the Yankee third baseman to past doping from 2010-12.

“It’s a soap opera” Damon told The News. “It always has been with Alex. I’m just glad I get to sleep at night knowing I never got involved with that stuff.”

Rodriguez when told of Damon’s radio comments before the Yankees’ game in Chicago said he had not seen the remarks and “would have to talk to Johnny. I talk to Johnny all the time. No disappointment whatsoever. Thanks. We’re right in the middle of it. I do love Johnny; he’s my good friend.”

In the Sirius interview Damon was asked about the other evidence MLB reportedly will use in its case against A-Rod including that he may have obstructed or interfered with baseball’s investigation of Biogenesis and its founder Anthony Bosch. “That’s big news. That’s the kind of thing you think they’re on the right path to clearing their name especially with what was going on in 2009” Damon said. “You start making all these important strides to get a better name for yourself and then this pops up again. The respect level that these guys are going to get now . . . Ryan Braun especially for tearing down that guy’s life a couple years ago.”