Koerner, a junior defensive back, was transported to a local hospital with what the school said were "non-life-threatening injuries." He tweeted his thanks to well-wishers on Sunday and said he would be OK.
I want to thank everyone who has reached out, shown support and relayed prayers. I'm going to be okay and look forward to making as fast a recovery as possible. Please everyone continue to say prayers and show support to my good friend Cole🙏❤️@cole_coffin— Jack Koerner (@KoernerJack) June 14, 2020
According to the Missouri State Highway Patrol, Koerner and one other individual, 21-year-old Cole Coffin, were injured in the crash, which involved a 2015 Sea-Doo and a 1995 Envision boat.
According to the report, the Sea-Doo struck the right side of the boat at 6:25 p.m. on Friday at the 4.2-mile mark of the Gravois Arm of Lake of the Ozarks. It's unknown who was driving the Sea-Doo, but Coffin was transported by air to the hospital, while Koerner was transported by EMS to Lake Regional Hospital in Osage Beach, Missouri.
Both Koerner's and Coffin's injuries are listed as serious on the incident report, and while three other individuals are also listed on the report, none was injured.
According to Iowa, Koerner had completed the first week of voluntary workouts with his teammates and was at Lake of the Ozarks with his father, Gary, for a father-son weekend along with other families.
Koerner was second on the Hawkeyes last season with 81 tackles.