Kovalev will be the 12th time Hopkins has faced an undefeated fighter. How does that stack up compared to the rest of the active big names?
Hopkins - 12
Klitschko - 11
Pacquiao - 10
Cotto - 8
Marquez - 5
Khan - 5
Bradley - 4
Canelo - 4
Mayweather - 3
*Early career Pro debut opponents are excluded
Hopkins - 12
Klitschko - 11
Pacquiao - 10
Cotto - 8
Marquez - 5
Khan - 5
Bradley - 4
Canelo - 4
Mayweather - 3
*Early career Pro debut opponents are excluded
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