Chicago Fire coach Frank Klopas accepts goalkeeper Sean Johnson's latest call-up.

Johnson is joining the USA U23 training camp in Texas.

"We knew this going into this season that Sean had a very good possibility of being called in with the Olympic team and also with the full team," Klopas told the Daily Herald, expressing confidence in backup Jay Nolly.

"It's great to have him here, but at least he's in an environment where he's training at a high level."