By C. Trent Rosecrans
Dr. John Steubs said Nishioka's broken left fibula will not require surgery or a cast, although no timetable is set until his soreness and swelling subsides, MLB.com reports.
"It's still a fracture, but it's not a huge injury that will force me to miss the season or anything," Nishioka told reporters through translator Ryo Shinkawa. "I just want to get back as soon as possible."
Nishioka is on crutches and manager Ron Gardenhire said he expects his second baseman to be out four to six weeks.
Minnesota called up Luke Hughes to play second in Nishioka's absence. Huges led the twins with six home runs in the spring. Hughes started at second and hit eight, going 0 for 3, in the Twins' 2-1 victory over Oakland on Friday.