"You have graduated middle school and survived an incredibly difficult year," Gayheart wrote in a heartfelt Instagram tribute to her 14-year-old daughter
βYou learn to love this kid in a way that you've never loved before. I also love my wife in a way that I've never loved before,β the first-time dad told PEOPLE
The retired football legend shares son Jack with his ex Bridget Moynahan, and two children β Benjamin and Vivian β with his ex-wife, Gisele BΓΌndchen