Rockies will keep four-man rotation, 75-pitch limits for 2013

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Colorado’s switch to a four-man rotation with starters on 75-pitch limits hasn’t exactly worked wonders, but the Rockies are sticking with that setup for the remainder of this season and plan to continue using it next year as well.

Troy Renck of the Denver Post reports that they’ll make a slight change, essentially pairing each starter with a “piggyback” reliever who’ll be expected to throw around 50 pitches. And in theory 75 pitches from the starter and 50 pitches from the reliever would get the Rockies deep enough into games to then rely on more traditional bullpen usage.

Coors Field and pitching at altitude has made it extremely tough for the Rockies to get consistently good or even decent starting pitching for basically their entire existence, so experimenting makes some sense and pairing pitchers is an interesting concept. Of course, it’s worth noting that the switch to a four-man rotation hasn’t really done much good so far.

Before the switch Rockies starters had a 6.28 ERA and since the switch Rockies starters have a 5.61 ERA. So they’ve been better but still really, really bad and the extra stress placed on relievers has caused the bullpen ERA to rise from 4.00 before the switch to 4.52 since. Basically all the improvement with the rotation has been canceled out by the bullpen getting worse (and throwing more innings).

Overall their team ERA was 5.38 before the switch and is 5.04 after the switch.

Dodgers activate Adrian Gonzalez

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The Dodgers have reinstated first baseman Adrian Gonzalez from the 60-day disabled list after his recovery from a herniated disc. To make room for him they have optioned Rob Segedin to Triple-A Oklahoma City.

Gonzalez last played on June 11. Since then the Dodgers have gone an astounding 46-9, with shoe-in rookie of the year candidate Cody Bellinger handling first base duties and posting a .978 OPS. When Gonzalez went down he was hitting .255/.304/.339 and only one homer in 49 games.

It’ll be interesting to see what kind of playing time he gets going forward. The Dodgers, of course, have a comfortable lead in the NL West, so they could afford to allow Gonzalez to play a good bit to see if his bat sharpens up while simultaneously giving Bellinger, who has never played more than 137 games in a season, a bit of a breather. Beyond that, though, the Dodgers ain’t broke, so it’s hard to see why anyone would want to tinker with things.

Rays activate Kevin Kiermaier

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The Tampa Bay Rays have activated outfielder Kevin Kiermaier from the 60-day disabled list.

Kiermaier, who fractured his hip in early June, is batting leadoff and playing center field in tonight’s game against the Mariners. He was just 3-for-24 on his rehab assignment, but those aren’t usually predictive of anything. He was hitting .258/.329/.408 when he went down. Getting his bat — and, more importantly, his glove — back in the lineup will boost the struggling Rays in their quest for a playoff spot.