On Wednesday night, Roger Federer advanced to his record 22nd consecutive Grand Slam semifinal. It's an amazing feat, but just how impressive is it? Where does it rank on the list of all-time greatest sports streaks?
Comparing Grand Slam semifinal appearances to consecutive baseball games played is like comparing apples to, um, tennis balls, so we're not going to even try to quantify whether winning five tennis matches in five straight years of Grand Slams is better or worse than Cal Ripken not getting hurt for decade-long stretches.
Instead, here are our choices for the five greatest individual streaks in history, presented in no particular order. Let us know what you think: