The fourth inning in Wrigley Field was pretty wild on Saturday. First up, the Pirates scored a pair of runs off Jake Arrieta, erasing a streak of 26 straight scoreless innings against the Cubs' ace, which included a shutout in the 2015 NL Wild Card Game.

That top of the fourth Saturday ended when a hard grounder up the middle hit Arrieta's lower leg and redirected into a double play to kill the rally.

And then Jeff Locke gave it right back. Jason Heyward singled, Kris Bryant walked and Anthony Rizzo hit a three-run homer. A Ben Zobrist walk followed, and then pitching coach Ray Searage went to the mound. He was ejected here:

As the Pirates broadcast noted, that's a rarity. Searage did appear to be giving home plate umpire Brian Knight an earful.

Things wouldn't improve from there. Arrieta would settle in and dominate the rest of the way, the Cubs got a two-run homer from the red-hot Addison Russell and ran away with an 8-2 win. They are now 5-0 against the Pirates, having outscored them 37-11 and lead them by nine games (the Cardinals started the day eight back and play later Saturday).