![ESPN - On this date in 1990, Ken Griffey Sr. and Ken Griffey Jr. became the first father-son duo to play on the same team. [Credit: Focus on Sport/Getty Images]](http://2.bp.blogspot.com/-thmQ8SR9964/VeNN_ABoW0I/AAAAAAAAs1I/irK2MNSQX1M/s1600/20150830_135331.jpg)
Phungo: ANNIVERSARY: August 31 1990 Griffey & Griffey Jr Join same lineup
![ESPN - On this date in 1990, Ken Griffey Sr. and Ken Griffey Jr. became the first father-son duo to play on the same team. [Credit: Focus on Sport/Getty Images]](https://andscape.com/wp-content/uploads/2016/08/ap_9008310113.jpg?w=589)
Ken Griffey Sr. and Jr. become the first father-son duo to ever play together
![ESPN - On this date in 1990, Ken Griffey Sr. and Ken Griffey Jr. became the first father-son duo to play on the same team. [Credit: Focus on Sport/Getty Images]](https://lookaside.fbsbx.com/lookaside/crawler/media/?media_id=1091464640939039)
ESPN - On this date in 1990, Ken Griffey Sr. and Ken Griffey Jr. became the first father-son duo to play for the same team. They both singled in the first inning. [
![ESPN - On this date in 1990, Ken Griffey Sr. and Ken Griffey Jr. became the first father-son duo to play on the same team. [Credit: Focus on Sport/Getty Images]](http://4.bp.blogspot.com/-1gNh8-v1_5s/VeNN_HGxb_I/AAAAAAAAs1Y/evCGQyEPRDs/s1600/20150830_135347.jpg)
Phungo: ANNIVERSARY: August 31 1990 Griffey & Griffey Jr Join same lineup
![ESPN - On this date in 1990, Ken Griffey Sr. and Ken Griffey Jr. became the first father-son duo to play on the same team. [Credit: Focus on Sport/Getty Images]](https://www.cincinnati.com/gcdn/presto/2019/12/26/PCIN/82c50d7c-ffa3-4a8b-85cc-78c73dfadc3f-072416_GRIFFEY_HOF_443.jpg?width=660&height=1006&fit=crop&format=pjpg&auto=webp)
Ken Griffey Jr. trends during ESPN 'Long Gone Summer' 30 for 30
![ESPN - On this date in 1990, Ken Griffey Sr. and Ken Griffey Jr. became the first father-son duo to play on the same team. [Credit: Focus on Sport/Getty Images]](https://library.sportingnews.com/2021-08/ken-griffey-sr-jr-072015-ftr-gettyjpg_gk4yin6oupxz11lb372xc9jvt.jpg)
Sept. 14, 1990: When the Griffeys made history with back-to-back homers
![ESPN - On this date in 1990, Ken Griffey Sr. and Ken Griffey Jr. became the first father-son duo to play on the same team. [Credit: Focus on Sport/Getty Images]](https://i.ytimg.com/vi/vCk1UY5Afus/mqdefault.jpg)
Griffeys hit back-to-back home runs in 1990
![ESPN - On this date in 1990, Ken Griffey Sr. and Ken Griffey Jr. became the first father-son duo to play on the same team. [Credit: Focus on Sport/Getty Images]](https://baseballhall.org/sites/default/files/Griffey%20Family_0.jpg)
Ken Griffey Sr. and Jr. become first father/son combo to appear in the same lineup
![ESPN - On this date in 1990, Ken Griffey Sr. and Ken Griffey Jr. became the first father-son duo to play on the same team. [Credit: Focus on Sport/Getty Images]](https://townsquare.media/site/464/files/2023/01/attachment-scott-rolen.jpg)
Watch Touching Moment as Scott Rolen Tells Parents 'He's In' HOF
![ESPN - On this date in 1990, Ken Griffey Sr. and Ken Griffey Jr. became the first father-son duo to play on the same team. [Credit: Focus on Sport/Getty Images]](https://townsquare.media/site/65/files/2023/03/attachment-Twitter-User-MLB.jpg?w=1200&h=0&zc=1&s=0&a=t&q=89)
Something New To Be Looking For On MLB's Opening Day; Debut Patch
![ESPN - On this date in 1990, Ken Griffey Sr. and Ken Griffey Jr. became the first father-son duo to play on the same team. [Credit: Focus on Sport/Getty Images]](https://townsquare.media/site/679/files/2023/03/attachment-Savannah-Bananas-2-YouTube.jpg)
The Savannah Bananas Sold Out Both Their Games in Des Moines
![ESPN - On this date in 1990, Ken Griffey Sr. and Ken Griffey Jr. became the first father-son duo to play on the same team. [Credit: Focus on Sport/Getty Images]](https://lookaside.fbsbx.com/lookaside/crawler/media/?media_id=1769979773048771)
ESPN - On this date in 1990, Ken Griffey Sr. and Ken
![ESPN - On this date in 1990, Ken Griffey Sr. and Ken Griffey Jr. became the first father-son duo to play on the same team. [Credit: Focus on Sport/Getty Images]](https://www.sportscasting.com/wp-content/uploads/2020/06/Ken-Griffey-Jr.-and-Ken-Griffey-Sr..jpg?w=1200)
Ken Griffey Jr. and Sr. Hitting Back-to-Back Home Runs is Still the Coolest Father-Son Moment in Sports History