[andyfox]

It's simply not possible. If his left foot was outside the line the whole way, he would not have had to jump outside the line to get to the base; after all, Erstad was in foul territory: if Cano was in effect straddling the fair line, with his entire left foot to the left all the way down, he's got a clear path to the base.

And he certainly did not interfere with Erstad catching the ball. Erstad never saw the ball, that's why he didn't even attempt to catch it. The throw was right on the money, that's why Cano did not try to advance to second: Kennedy was right on the line and backed up the play perfectly.

So even if Cano's left foot was not touching the line, and I don't know if it was, no interference was called for because he did not interfere with the catching of the ball. And if his foot was touching the line, then there's not even a doubt about it.

All it takes to understand this is the ability to read the rules.