![On Aug. 31, 1990, Ken Griffey Jr. and Sr. became the first father-son teammates in MLB history](https://baseballhall.org/sites/default/files/B-513-84_01_web_0.jpg)
Ken Griffey Sr. and Jr. become first father/son combo to appear in the same lineup
![On Aug. 31, 1990, Ken Griffey Jr. and Sr. became the first father-son teammates in MLB history](https://staticg.sportskeeda.com/editor/2022/11/f0043-16693035353030-1920.jpg)
Which duo was the first ever father-son pair to play on the same team?
![On Aug. 31, 1990, Ken Griffey Jr. and Sr. became the first father-son teammates in MLB history](https://www.si.com/.image/ar_1:1%2Cc_fill%2Ccs_srgb%2Cfl_progressive%2Cq_auto:good%2Cw_1200/MTg4OTAwODExNjQ2OTY5NDI0/usatsi_16358933_168389536_lowres.jpg)
Ken Griffey Jr. Can Appreciate LeBron James Wanting To Play With His Son - Sports Illustrated Miami Heat News, Analysis and More
![On Aug. 31, 1990, Ken Griffey Jr. and Sr. became the first father-son teammates in MLB history](https://i.ytimg.com/vi/NG78IPmmOwY/maxresdefault.jpg)
Ken Griffey Sr. and Jr. become the first father-son duo to ever play together
![On Aug. 31, 1990, Ken Griffey Jr. and Sr. became the first father-son teammates in MLB history](https://i.psacard.com/cardfacts/1991-mothers-cookies-ken-griffey-jr-3-kgriffey-jrand-sr-holding-gloves-49048.jpg?h=1000)
1991 Mother's Cookies Ken Griffey Jr K.Griffey Jr.& Sr. (Holding Gloves)
![On Aug. 31, 1990, Ken Griffey Jr. and Sr. became the first father-son teammates in MLB history](https://mediaassets.wcpo.com/photo/2016/01/07/Ken_Griffey_father_and_son_1452150130484_29496965_ver1.0_900_675.jpg)
Sports Vault: 31 years ago, The Kid got his bid
![On Aug. 31, 1990, Ken Griffey Jr. and Sr. became the first father-son teammates in MLB history](https://sports.cbsimg.net/images/visual/whatshot/USATSI_8695243.jpg)
On this date: Ken Griffey Sr. and Jr. play in same game for first time
![On Aug. 31, 1990, Ken Griffey Jr. and Sr. became the first father-son teammates in MLB history](https://pbs.twimg.com/media/CNwvef8WwAAaqpf.jpg:large)
The Players' Tribune on X: 25 years ago today, Ken Griffey, Jr. and Ken Griffey, Sr cross paths in the locker room. / X
![On Aug. 31, 1990, Ken Griffey Jr. and Sr. became the first father-son teammates in MLB history](https://staticg.sportskeeda.com/editor/2023/01/64593-16745618996285-1920.jpg)
When Ken Griffey Sr. humorously 'grounded' Ken Griffey Jr. for catching a fly ball in his territory while playing with the Seattle Mariners
![On Aug. 31, 1990, Ken Griffey Jr. and Sr. became the first father-son teammates in MLB history](https://www.thenewstribune.com/sports/mlb/seattle-mariners/1xduui/picture53375985/alternates/LANDSCAPE_1140/griffey)
Ken Griffey Jr. elected to Hall of Fame
![On Aug. 31, 1990, Ken Griffey Jr. and Sr. became the first father-son teammates in MLB history](https://lookaside.fbsbx.com/lookaside/crawler/media/?media_id=762900311704920&get_thumbnail=1)
Ken Griffey Jr. & Sr. Playing Together August 31st, 1990 🗓 32 years ago, Ken Griffey Jr. and Sr. became the first father-son combo in MLB history to take the field