Wilkins declined to name the player, saying that Zac Shaw, who is the current Wisconsin women's soccer assistant coach and former assistant at Penn State, knows her team too intimately and his knowledge of a specific injury would put the Lions at a disadvantage.
If Penn State plans to make it to the championship match on Sunday, it will first have to go through the 8th-seeded Badgers on their home turf and then past the winner of the first-round contest between Michigan and Ohio State.
"I don't know if I'd prefer [to play] one or the other," Wilkins said of the Wolverines and Buckeyes, "just because Ohio State was a very close game when we played them and Michigan is on the upswing having just beaten Notre Dame."
Outside of other controllable factors, icy weather in the Northwest might play a role in some of the games this weekend.
The Lions will have to deal with temperatures in the low 30s, compared with those in the 70s in which they have been practicing.
However, Wilkins seemed unfazed by the chilly prospect.
"I don't think the weather will play to much into it," Wilkins said with a smile. "Our women are pretty hardcore mentally."