Osvaldo Alonso
MF · Born November 11, 1985
Age in each playoff game
- 2013 MLS Cup Playoffs (October 30, 2013), Seattle Sounders vs Colorado Rapids 2–0: 27 years, 353 days
- 2013 MLS Cup Playoffs (November 2, 2013), Seattle Sounders vs Portland Timbers 1–2: 27 years, 356 days
- 2013 MLS Cup Playoffs (November 7, 2013), Seattle Sounders vs Portland Timbers 2–3: 27 years, 361 days
- 2014 MLS Cup Playoffs (November 2, 2014), Seattle Sounders vs FC Dallas 1–1: 28 years, 356 days
- 2014 MLS Cup Playoffs (November 10, 2014), Seattle Sounders vs FC Dallas 0–0: 28 years, 364 days
- 2014 MLS Cup Playoffs (November 30, 2014), Seattle Sounders vs LA Galaxy 2–1: 29 years, 19 days
- 2016 MLS Cup Playoffs (October 27, 2016), Seattle Sounders vs Sporting Kansas City 1–0: 30 years, 351 days
- 2016 MLS Cup Playoffs (October 30, 2016), Seattle Sounders vs FC Dallas 3–0: 30 years, 354 days
- 2016 MLS Cup Playoffs (November 6, 2016), Seattle Sounders vs FC Dallas 1–2: 30 years, 361 days
- 2016 MLS Cup Playoffs (November 22, 2016), Seattle Sounders vs Colorado Rapids 2–1: 31 years, 11 days
- 2016 MLS Cup Playoffs (November 27, 2016), Seattle Sounders vs Colorado Rapids 1–0: 31 years, 16 days
- MLS Cup 2016 (December 10, 2016), Seattle Sounders vs Toronto 0–0 (5–4 pens): 31 years, 29 days
- 2017 MLS Cup Playoffs (October 29, 2017), Seattle Sounders vs Vancouver Whitecaps 0–0: 31 years, 352 days
- 2018 MLS Cup Playoffs (November 4, 2018), Seattle Sounders vs Portland Timbers 1–2: 32 years, 358 days
- 2018 MLS Cup Playoffs (November 8, 2018), Seattle Sounders vs Portland Timbers 3–2 (2–4 pens): 32 years, 362 days
- 2019 MLS Cup Playoffs (October 20, 2019), Minnesota United vs LA Galaxy 1–2: 33 years, 343 days
- 2020 MLS Cup Playoffs (November 22, 2020), Minnesota United vs Colorado Rapids 3–0: 35 years, 11 days
- 2020 MLS Cup Playoffs (December 3, 2020), Minnesota United vs Sporting Kansas City 3–0: 35 years, 22 days
- 2020 MLS Cup Playoffs (December 7, 2020), Minnesota United vs Seattle Sounders 2–3: 35 years, 26 days
- 2021 MLS Cup Playoffs (November 21, 2021), Minnesota United vs Portland Timbers 1–3: 36 years, 10 days
Age in each season
- 2013 (Seattle Sounders): 27 years, 111 days to 27 years, 350 days
- 2014 (Seattle Sounders): 28 years, 117 days to 28 years, 349 days
- 2015 (Seattle Sounders): 29 years, 115 days to 29 years, 348 days
- 2016 (Seattle Sounders): 30 years, 116 days to 30 years, 347 days
- 2017 (Seattle Sounders): 31 years, 112 days to 31 years, 345 days
- 2018 (Seattle Sounders): 32 years, 112 days to 32 years, 351 days
- 2019 (Minnesota United): 33 years, 111 days to 33 years, 329 days
- 2020 (Minnesota United): 34 years, 110 days to 34 years, 363 days
- 2021 (Minnesota United): 35 years, 156 days to 35 years, 361 days
- 2022 (Atlanta United): 36 years, 107 days to 36 years, 332 days
- 2023 (Atlanta United): 37 years, 106 days to 37 years, 344 days