Are they the first husband - wife pair to each be current world champions in the five major team sports (soccer, baseball, basketball, football, hockey)? Nomar never won a World Series. I don't think Candace Parker's husband has won an NBA title. Tennis is an individual sport, so please don't feel the need to remind me that Graf and Agassi are one of the all-time power athletic couples. There are others in track and field and in some of the winter sports. My question is limited to the five major team sports.
Add cricket in there, it's the #3 team sport in the world. Australia's Mitchell Starc and Alyssa Healy were both in World Cup-winning squads (Women's 2013 / Men's 2015), but Healy was only on the bench So... yeah, Ertzes AFAIK. But including individual sports would be a more useful measure.