ROSEMONT, Ill. — Iowa’s men’s basketball team plays only a handful of competitive opponents in non-conference play this fall. But the Hawkeyes face perhaps their toughest test with nobody watching on Sunday. Iowa will host Creighton in a closed scrimmage Sunday at Carver-Hawkeye Arena. The session doesn’t count with media and spectators prohibited from attending. But it’s a chance for Iowa to test itself against a national-level opponent in the Bluejays, who rank 16th by the Associated Press.