American swimming great Michael Phelps has not shied away from speaking about his mental health issues. But Phelps’s wife Nicole fears she may not have him around.

Nicole told TODAY Parents magazine: "After Vanessa [Bryant] lost Kobe, all I could do was look at Michael and be like, 'Can we please help you?’ Because if I lose you, I don’t know what I’m going to do. Michael is the most amazing father and partner I could have ever asked for."