Orlando City’s defensive leader, Jonathan Spector, left training early Tuesday due to injury.

Spector appeared to injure his knee during a routine drill, according to a spokesman for the club. He sat on bleachers off to the side for the rest of the session and later was driven off the field in a golf cart.

He underwent multiple tests with the club’s medical staff on Wednesday. Results of those tests and an update on his status is expected Thursday.

Spector is widely credited for helping turn around a back line that conceded the most goals in the league last year.

Aside from goalkeeper Joe Bendik, who has started and played 90 minutes in all 23 of Orlando City’s games this season, Spector leads the team in minutes played with 1,890 across 21 games. The two May matches he missed — a 4-0 loss to Houston and a 1-1 draw in San Jose — were due to a slight ankle injury and roster rotation during a tough stretch of games.

Orlando City has multiple options at centerback. Spector has started recently alongside José Aja. United States Under-20 national team defender Tommy Redding also is available and full recovered from a bout of plantar fasciitis. Young Brazilian Leo Pereira also has appeared at the position for the Lions this season.

Striking pair

After Orlando City’s 2-1 loss in Montreal over the weekend, Lions coach Jason Kreis seemed to question the team’s new attacking duo of Cyle Larin and Dom Dwyer.

Kreis said, “The question would be are they too similar? … Can they figure it out?”

After training Wednesday, the Lions’ coach seemed much more optimistic about the forwards’ progress.

“I felt like in the second half of the Montreal game, we started to really see some decent combination play,” Kreis said. “They linked up with each other for a breakaway chance for Cyle. So, I think that situation is improving in my opinion.”

In response to a separate question during media availability after training, Kreis said he doesn’t handle losing and poor performances well.

“I take a ton of responsibility for them, I honestly do,” h said. “In a lot of ways, I feel like first and foremost it’s my fault if the team doesn’t play well and it’s my fault if we lose. That’s the way I’ve always been. I was the same way as a player, actually. It does make life a little difficult sometimes, and you need people around you to remind you there’s more to life than that as well. You still have a family and a lot of things that should mean a whole lot to you.”

Pre-sale

Tickets for the United States men’s national team World Cup qualifier against Panama that will be held at Orlando City Stadium Oct. 6 went on pre-sale Wednesday morning.

Early access to the tickets is available on Ticketmaster using the offer code H5GOAL.

The pre-sale event ends at 8 a.m. Aug. 10, four hours before tickets go on sale to the public via ussoccer.com.

The club sent out important information regarding stadium seating for that match with the pre-sale announcement. Sections 113-117 of the stadium will have access to the club lounge during the match but will not include food and beverage. Those sections will be “a la carte only.” Also, sections 13-17 will not be considered club sections so will not have access to the lounge for the qualifier.

ardelgallo@orlandosentinel.com