Michael Strahan has been one of the staple hosts of Good Morning America for years, a beloved part of the morning news show.MORE: Michael Strahan's muscular physique in gym photo gets fans talkingAs such, fans have been disappointed upon seeing him absent from the morning roster for the past several installments of the show.VIDEO: Michael Strahan reveals incredible underground man caveWhile the TV star hasn't shared a definitive reason for his absence, he is presumably taking time off to spend with friends and family while also developing his own Michael Strahan Brand.While his personal presence on social media has been more infrequent over the past few weeks, he did come back to share a rare photograph.MORE: Michael Strahan's finale of $100,000 Pyramid leaves fans asking the same thingAs opposed to more branded, professional work, this one simply saw him in the midst of a throwback celebration with his friends from his days as a pro football player."Celebrated my brotha @curtmenefee as he earned a master's degree in Public Policy & Administration from Northwestern University.