Rubby De La Rosa is back from Tommy John surgery

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23-year-old Rubby De La Rosa appeared to be on a rehab path that would see him return to the majors in some role in September, but the Dodgers opted to speed things up a bit, activating him from the disabled list on Tuesday.

The move comes just one year and 12 days after De La Rosa underwent Tommy John surgery. One of the Dodgers’ bright spots for a time last year, De La Rosa had a 3.71 ERA and 60 strikeouts over 60 2/3 innings in 10 starts and three relief appearances in 2011.

De La Rosa is being brought back now after just four appearances in the minors. As you might have guessed, they were very good ones: he pitched 12 scoreless innings, allowing just five hits. However, none of those appearances came above A-ball. In his last appearance, he threw four scoreless innings for Single-A Rancho Cucamonga.

De La Rosa projects as a starter for the Dodgers in 2013 and beyond, but it appears as though he’ll work out of the bullpen for now. One assumes the Dodgers will be careful with him and won’t let him pitch on back-to-back days anytime soon. He was being used as a starter in the minors.

Getting the boot to make room for De La Rosa is ex-closer Javy Guerra. That too comes as a surprise, given that he had pitched 11 1/3 scoreless innings in his last nine appearances. He has a 2.66 ERA in 44 innings for the season.

Aledmys Diaz is trying to improve his defense with strobe glasses

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MLB.com’s Jenifer Langosch reports that Cardinals’ shortstop Aledmys Diaz has been sporting a new look around Busch Stadium with a pair of “strobe glasses,” technology-enhanced specs designed to help athletes focus on the ball. Like a strobe light, the lenses of these glasses affect a player’s vision by rapidly changing opacity, giving its wearers the illusion that the objects they see are moving more slowly than normal. Once a player adjusts to the new speed of play, they gain a greater sense of control and are able to time their actions with more precision.

Diaz isn’t the first MLB player to utilize the technology, just the first Cardinals’ player to do so. It’s been tested by Bryce Harper, Corey Brown, Tommy Joseph, Austin Hedges and Joe Mauer, among others around the league, and has been used for everything from refining a catcher’s reflexes behind the plate to tweaking a hitter’s ability to track a pitch. Per Langosch, Diaz has been using the glasses to hone in on the ball during pregame drills, increasing both his confidence and response time on the field and improving his defense at short.

The shortstop has been the focus of some concern this season after seeing a sizable dip in his production at the plate, and his five fielding errors, 0.6 UZR and 0.6 fWAR haven’t helped matters, either. He sustained a minor thumb injury during an at-bat on Friday night, and was left off of the Cardinals’ starting lineup on Saturday, though manager Mike Matheny didn’t rule out his ability to pinch-hit during the series. While the strobe glasses are a good start, Diaz will need more than a pair of specs to match the spotlight-worthy performance he turned out during his rookie season in 2016.

Eduardo Rodriguez could rejoin the Red Sox rotation in July

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Red Sox’ left-hander Eduardo Rodriguez may finally get a chance at cracking the rotation again, assuming all goes well in Double-A Portland first. Rodriguez took the field prior to the club’s afternoon session with the Angels, firing 68 pitches in a simulated game as he prepared for an upcoming rehab assignment in Portland on Thursday.

The 24-year-old southpaw suffered a right knee subluxation during pregame warmups on June 1, and it’s been a slow path to recovery ever since. It’s not the first time Rodriguez has had issues with his right knee — he sustained a similar injury during spring training last year — and this time around, the Red Sox weren’t about to gamble with their starter’s health. Ian Browne of MLB.com reports that Rodriguez was put in a knee brace and underwent exercises designed to help him regain some mobility and stability while he worked back up to full strength on the mound.

He’ll still need to prove he can throw a 75- to 80-pitch outing in Double-A, and barring any significant setbacks, will likely rejoin the Red Sox’ pitching staff when they visit the Rangers next month. In the meantime, the club will continue to cycle starters through the No. 5 spot, which has seen no fewer than three different pitchers since Rodriguez hit the disabled list. The lefty is 4-2 in 10 starts this season after logging a 3.54 ERA, 3.1 BB/9 and career-high 9.6 SO/9 through his first 61 innings.