On this day in 1990, Ken Griffey Sr. and Ken Griffey Jr. become the 1st father and son to play on same team in the same game in MLB history.
The Griffeys hit back-to-back singles in the first inning and would come around to score during the inning. The pair would get the chance to play together the remainder of the 1990 season and into 1991. The Griffeys would famously hit back to back home runs on September 14, 1990.
The pair was featured on a handful of cards together during the 1991 season. The most famous card of the pair is probably the 1991 Score #841 The Griffeys Card. You can find cards of the pair for around $2 on eBay.