If you wondered why Andrew Jacobson wasn't in the starting lineup Thursday, the reason is actually one not to be taken lightly. Jacobson, it turns out, is allergic to peanuts.

“A.J. came up just as we are getting ready to walk out to the field for the game and said, ‘I’ve been into some cans over there and I didn’t realize that it had peanuts in there and I’m allergic to peanuts,’" FC Dallas coach Schellas Hyndman explained to MLSsoccer.com by phone after the match. "His body was shutting down so we had to take him to the hospital.”

According to MLS, Jacobson spent the rest of the trip in the hospital and may not make it to Kansas City. Jack Stewart started in Jacobson's place and wasn't even aware of what was happening until the last second.

“I didn’t know what was going on,” Stewart admitted to MLSsoccer.com. “They just told me to go in there and I was like, 'This is going to be interesting.’”

Apparently, Stewart works well without anticipation as he was strong in defense and scored the game's only goal.

“A better script would have been you would have known you were starting,” said Stewart to MLSsoccer.com of his fairy-tale beginning with FC Dallas, “but at the end of the day, I did what I was brought in here to do, and that was to give cover to guys and then try to work my way into the lineup.”