The Bayern Munich and Germany centre-back, 29, will be 31 by the time UEFA EURO 2020 rolls around, but has no intention of retiring from international football post-Russia 2018.
"I don't believe [the World Cup] will be my last major tournament," Hummels said from Germany's pre-tournament training base in Eppan, northern Italy. "Playing at the EUROs at the age of 31 is definitely doable."
*Translation: Here we go @DFB_Team!
Hummels did say, however, that he does not expect to still be playing for Germany at the 2022 World Cup in Qatar.
"I'll already be 34 at the 2022 World Cup," he explained. "Right now, I don't see myself having the level or strength to keep up, with it taking place in the winter."
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Hummels, now a 63-time senior international, made his Germany debut against Malta in a May 2010 friendly. He did not travel to South Africa for the 2010 World Cup, but started all five games at EURO 2012, where Die Mannschaft lost 2-1 to Italy in the semi-finals.
The former Borussia Dortmund defender played in all but one of Germany's matches during their triumphant 2014 World Cup campaign in Brazil, and made five appearances at EURO 2016, again reaching the last four.
Hummels has scored five senior international goals to date.