But that didn't stop FCD head coach Schellas Hyndman from inserting the Canadian international into that spot. So far, Serioux has delivered results.
"Adrian (Serioux) is one of those lucky/unlucky athletes," Hyndman said. "He's so versatile that he gets moved around a lot. That's the unfortunate thing about Adrian but it's also a fortunate thing because his game has improved throughout his career because he's been moved around and has been forced to use his left foot."
So far this year, Serioux has also played at left back and center back, as well as a defensive midfielder. But he admits playing on the right side feels more natural since he is right-footed.
"I don't think it's really a matter of me being comfortable," he said. "My right foot is my dominant leg and whatever dominant foot you have is the side that you're preferred on. Being on the right side, it's not much different from being on the left. But that still allows me to go forward, the freedom to overlap and get involved in the attack. It's still a comfortable position along the backline and something I will have to deal with."
This season, Serioux has started and played in 16 matches for FCD. He also has contributed two assists but none was bigger than when in a 2-1 loss at Columbus on August 16, he assisted on Jeff Cunningham's 100th goal of his MLS career.
"It was just an opportunity where I felt like I could take on one guy and the space just opened up," Serioux said. "I feel grateful for Jeff to get his 100th goal. I know he's been waiting for it. I'll take it in stride. I'm still waiting for my check but it's a great accomplishment for him and I'm happy for him."
Serioux was joking about the check from Cunningham but admits playing right back is still a very new experience.
"I've never played right back," he said. "So, it's a totally new position. It's all new to me now but I'm one of those guys who have to pretty much adapt to playing multiple positions. Not a lot of guys are thrown into multiple positions and can adapt. So, I feel privileged and it's an advantage for me to be able to do that."
Other than the extensive action he has seen with FCD, Serioux has also been called in to the Canadian national team on a number of occasions this year, something he labels ass very rewarding, especially considering that he missed much of 2007 with a knee injury.
"From last year, with the injuries and stuff like that, it was difficult for me after missing the Gold Cup," he said. "It has been a rollercoaster for everyone but that's part of our job. People come in, people go and there are changes happening every so often and we have to just take it in stride, adapt to it as quickly as possible and not let it affect us when it comes to game time."
His latest action came last Wednesday in a World Cup qualifier against Jamaica that was played in his hometown at BMO Field.
"It was actually great," Serioux said. "Usually, when we play in Canada with the national team, it feels like we're at home but away. In Toronto, we had a great base of Canadian support there and it was a great atmosphere."
Serioux said he and his teammates are more comfortable playing in the 4-4-2 that Hyndman has installed compared to the 3-5-2 that was employed by Steve Morrow earlier in the year.
"It's just an extra man that the offense has to work through," he said. "There's less risk as far as when you make a mistake that could be costly. Playing with four in the back, most guys are comfortable with that because that's how they grew up playing. You don't usually play three in the back there, so it's one of those things that you just adapt to. It's just one of those things that you feel comfortable in and with everyone right now."
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