4. Landon Donovan - 26 years, 96 days
Landon Donovan is the fastest ever American to reach 100 caps but "only" makes it to number four on our list.
The former Everton striker reached the landmark against Argentina in 2008 and is now closing in on an impressive 150 for his country.
Aged just 31, Donovan may even challenge for the most international caps of all time, currently at 181.
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