Wahlstrom, taken 11th overall in the 2018 draft, has spent most this year with the Bridgeport Sound Tigers, the Islanders’ AHL affiliate.
After starting this season with the Sound Tigers, the right-winger appeared in nine games with the Isles, failing to record a point. He was sent back to the AHL on Nov. 9 and has posted three goals and six assists in 20 games for Bridgeport this year.
It will be Wahlstrom’s second-straight year representing the United States at the World Juniors. The 19-year-old had two goals and two assists at the 2019 event, where the Americans won silver. He will be one of only five returning players for Team USA.
He also previously represented the United States at the 2017 and 2018 U18 World Championship, winning a gold and a silver.
The United States are in Group B and will open the tournament on Dec. 26 against Canada.