The Baltimore Orioles' weekend FanFest was lacking some serious star power.

Already without Chris Davis - who was absent due to the recent birth of his twins - fans received word Friday that both Manny Machado and Jonathan Schoop would also not be in attendance despite previously being scheduled to sign autographs.

While Buck Showalter said Machado gave the team an understandable excuse, the skipper told reporters Saturday that Schoop did not attend the event after receiving bad advice from his agent.

"I'm disappointed that Jon's not here," Showalter said, according to Roch Kubatko of MASN Sports. "I think we all get advice along the way and heed some of it and some we don't. I think he got some bad advice and it's one of those things. We'll move on and it’s unfortunate."

Showalter added: "I've gotten a feel for what Manny's absence is about and I have a pretty good understanding of that. Jon's I don't. The reasons I've been given, not very good. I made a lot of decisions that I look back on and wish I hadn't when I was 25."

There's believed to be tension between the Orioles and Schoop as they prepare to head into arbitration. The two sides began preliminary extension talks in November but were never able to agree to a deal. It's believed that recent contract talks and the large discrepancy in salary figures exchanged for arbitration has created a level of frustration on both sides that is growing, per Kubatko.

Schoop is asking for $9 million following his first All-Star season, while the Orioles countered with a $7.5-million offer.

Attendance is considered mandatory for all Orioles players without an approved excuse. Schoop also missed last year's event due to a death in the family.