Lopez has been sharp during his brief time with Syracuse, going 2-0 in three starts while posting a 1.80 ERA and a 0.95 WHIP with 16 strikeouts in 20 innings. Before moving up to the Minors' highest level, the 22-year-old right-hander pitched to a 3.18 ERA and piled up 100 strikeouts in 76 1/3 innings (14 starts) for Double-A Harrisburg.
Though Lopez struggled in his big league debut -- he allowed six earned runs on 10 hits against the Dodgers -- the hard-throwing righty did showcase his bat-missing skills by punching out nine hitters in 4 2/3 innings, while issuing just one walk.
Lopez has tallied 116 strikeouts in 96 1/3 innings (17 starts) this season between the Double-A and Triple-A levels.
The rest of the best performances from top prospects Sunday
• No. 79 overall prospect Hunter Renfroe connected on a three-run home run to lead Triple-A El Paso past Sacramento in game two of a doubleheader. Thanks to seven home runs in his last 16 games, the Padres' No. 4 prospect is pacing all Pacific Coast League hitters.
• Blue Jays No. 7 prospect Max Pentecost homered and doubled as part of a 2-for-4 performance in Class A Lansing's win against Lake County. The 2014 first-rounder is hitting .299 with seven homers through 53 games this year.
• It was a special Sunday for Brewers No. 29 prospect Brandon Woodruff, who paired a nearly untouchable outing with some magic at the plate in a 1-0 win for Double-A Biloxi. Woodruff allowed just one hit in six innings, striking out nine and walking none. But it was the righty's solo homer -- the game's only run and the first jack of Woodruff's career -- that sealed the deal for the Shuckers.
• Cubs No. 9 prospect Oscar De La Cruz was sharp in his third start for Class A Short Season Eugene, as he struck out seven and allowed one earned run on three hits and a walk in 4 1/3 innings. The 21-year-old right-hander has piled up 16 strikeouts in 11 1/3 innings to begin his season.
• Giants No. 21 prospect Ty Blach allowed one earned run in seven innings to record his second complete game of the season for Triple-A Sacramento. The left-hander scattered six hits and also struck out six, throwing 73 of his 97 pitches for strikes, as the River Cats defeated El Paso, 5-1, in game one of a twin bill. Blach has won each of his past five starts, during which he's pitched to a 0.97 ERA in 37 innings.
• Marlins No. 8 prospect Isael Soto fell a single short of hitting for the cycle and drove in all three of Class A Greensboro's runs in a loss against Augusta. The home run, a two-run shot in the bottom of the fourth, was his eighth of the season, and he later added an RBI triple.
• Making his debut for Class A Short Season Brooklyn, Mets No. 17 prospect Thomas Szapucki fired 5 1/3 innings of four-hit ball in a 3-0 win against Staten Island. The 20-year-old southpaw issued three walks and struck out eight, giving him a 55-12 strikeout-to-walk ratio along with a 0.52 ERA in 34 1/3 innings for the season.
• Rays No. 13 prospect Justin Williams went 2-for-4 with a triple and three RBIs to help Double-A Montgomery defeat Birmingham, 6-4. It was just the sixth Double-A game for the 20-year-old outfielder, who was promoted to Montgomery after hitting .330/.350/.448 over 51 games with Class A Advanced Charlotte.
• Red Sox No. 11 prospect Mauricio Dubon extended his hitting streak to six games on Sunday as he went 4-for-4 with two doubles in Double-A Portland's loss against Binghamton. The four-hit performance was his third of the season and first at the Double-A level. The 22-year-old shortstop has hit .333 with 11 extra-base hits over 26 games since being promoted from Class A Advanced Salem, where he posted a .306/.387/.379 batting line with 24 steals and 53 runs scored in 62 games.
• Reds No. 21 prospect Aristedes Aquino filled out the stat sheet as he helped power Class A Advanced Daytona in a doubleheader against Bradenton. He hit a two-run homer, his 14th of the year, as well as a double in game one, finishing 3-for-4 at the plate, before putting a bow on his day with a 2-for-4 performance in the nightcap. Gavin LaValley (Reds' No. 25) also went deep for Daytona, his sixth, and tallied three RBIs in game two for Daytona.