Who are you, and what have you done with Luis Castillo?

That’s what you’ve got to love about baseball — how some guys just seem to come out of nowhere. Hitting streaks are so precarious. Even a great hitter — which Castillo is not — can have an off night or face a really tough pitcher and go 0-for-4.

But when you’re hot, you’re hot. You may be a mediocre player, but if you get into a groove and the ball starts looking like a grapefruit up there, people start mixing you up with Rogers Hornsby and Joe DiMaggio. Castillo’s streak won’t get past 40, however.