Nostalgia in sports is common among fans who are also bettors. They remember the good times of their clubs with determined players in great enthusiasm, so they develop an emotional bond with that athlete, imagining him as a super hero who can save the club on the hardest moments. However, it's important to have an accurate and neutral understading of the athletes, clubs and leagues when betting, so you don't fall for nostalgia and emotions in general.

For those who can't do this, I believe it's better to just avoid bets which have sentimental attachment to them.