The De La Rosas aren't related, don't throw with the same arm and hail from different countries, but they're similarly looking to extend recent success on the mound.
Jorge De La Rosa will try to do something few Colorado Rockies pitchers have by holding down the Arizona Diamondbacks, who are going after a four-game home sweep Sunday behind Rubby De La Rosa.
While Jorge De La Rosa is a left-hander from Mexico in his eighth season, Rubby De La Rosa is a Dominican right-hander in his fifth year - first with the Diamondbacks (40-41).
Jorge De La Rosa (5-3, 4.59 ERA) has gone 5-1 with a 2.96 ERA over his last eight starts after scattering four hits over seven scoreless innings in Tuesday's 2-1 win at Oakland.
The 34-year-old has yielded one run over 21 1-3 innings while winning his last three away starts.
Jorge De La Rosa, who hasn't won four straight on the road since 2009, hopes to have recovered from a cut on his middle finger that caused swelling and numbness against the Athletics.
"It felt like I was grabbing an egg with my finger, but I was able to keep pitching," he told MLB's official website.
Jorge De La Rosa is 0-4 with a 4.81 ERA in his last six starts versus Arizona. He also opposed Rubby De La Rosa on June 25, allowing one run over five innings but did not get a decision in Colorado's 6-4 home win.
Chris Owings is 4 for 7 with a home run and a triple when facing Jorge De La Rosa, while star slugger Paul Goldschmidt is 4 for 14 with a home run.
Goldschmidt has reached safely in 28 straight games against the Rockies after going 0 for 4 with a walk Saturday when Arizona took its third straight in the series with a 7-3 victory.
The Diamondbacks, who trail slumping San Francisco by 1 1/2 games for second in the NL West, haven't swept a four-game series from the Rockies since September 2002.
Arizona has batted .336 with 11 home runs and scored 7.2 runs per game while winning eight of 11 in this season series. Goldschmidt is batting .390 and A.J. Pollock is hitting .370 against the Rockies.
The last-place Rockies (34-47) will try to avoid their fifth straight loss and eighth in nine games as they close out a 10-game road swing. They've hit .194 while totaling 11 runs over their last six and defense was in issue Saturday as Colorado allowed three unearned runs.
''We didn't defend the bunt the last couple of nights,'' manager Walt Weiss said. ''Our guys know how to defend bunts, just didn't do it the last couple of nights, nothing more than that.''
Carlos Gonzalez was relegated to pinch-hit duty Saturday while in the midst of a 3-for-29 slump.
Colorado may have a tough time turning things around against Rubby De La Rosa (6-3, 4.60), who has gone 2-0 with a 1.30 ERA over his last four starts. He yielded two runs over 5 2-3 innings in Tuesday's 6-4, 10-inning home loss to the Los Angeles Dodgers.
"I try to get better and try to keep the ball down and try to make my slider a little bit better and get comfortable and confident," Rubby De La Rosa said.
The 26-year-old gave up one run over seven innings and did not get a decision in last month's meeting. He's gone 2-0 with a 2.50 ERA in three career starts versus Colorado.
Nolan Arenado homered off De La Rosa at Coors Field, while Wilin Rosario went 2 for 3. DJ LeMahieu led the club with three hits Saturday after going 0 for 14 over his previous four games.