Instagram/Katie Gaudreau & Devin Jo Celebrity Katie Gaudreau, sister of late NHL stars, expecting first child with husband Devin Joyce. A joyful milestone following family tragedy. March 27, 2026 AceShowbiz - Katie Gaudreau, sister of late hockey stars Johnny and Matthew Gaudreau, is expecting her first child with husband Devin Joyce. The couple shared the joyful news on February 26 with a heartfelt Instagram video, where Katie, 25, held a sonogram and a pair of baby Nike sneakers, while embracing Joyce.