Rob Gronkowski – $40 Million
They say that NFL star Rob Gronkowski is very smart when it comes to spending money. In an interview, Gronkowski revealed that he did not touch any of his NFL money. He actually only spends his earnings from endorsement deals, which is probably why he has piled up a $40 million fortune. In March 2019, the 29-year-old tight end of the New England Patriots announced his intention to retire on his Instagram account. He has worked hard and now has his entire life in front of him to enjoy spending all the cash if he wants.