U.S. bobsled pilot Justin Olsen has been released from a hospital in Guangneung, South Korea, two days after undergoing surgery to remove his appendix.

Olsen is scheduled to compete in the two-man and four-man events starting Feb. 18.

“We know he’s going to do what he can within his power to be at the starting line on race day,” USA Bobsled and Skeleton Chief Executive Darrin Steele said in a statement earlier this week.

A year ago, Wiley Maple wondered whether he would be able to run or jump again.

The veteran U.S. Alpine skier underwent four knee surgeries in five years because of a deteriorating patella tendon. He had three back surgeries and suffered a dislocated ankle and elbow.

Competing in the Winter Olympics seemed as far away for Maple as an injury-free season.

The U.S. Olympic Alpine ski team has added Tricia Mangan to replace the injured Jackie Wiles.

Mangan, 20, finished fourth in the super-G at the Junior World Ski Championships in Davos, Switzerland, earlier this year.

Wiles had been expected to be a key part of the U.S. team but crashed during the downhill in a World Cup event at Garmisch-Partenkirchen, Germany, last week. She suffered a slew of injuries to her left leg, including a torn anterior cruciate ligament and two broken bones.

Thirty-two cases of norovirus have been confirmed among workers at the 2018 Winter Olympics, organizers said Tuesday.

Much of the outbreak has been concentrated among 1,023 security personnel housed at the Horeb Youth Center in Pyeongchang. There have been several cases in other locations.

The ill reported suffering from headaches, stomach pain and diarrhea, organizers said.