SAN FRANCISCO (Interstat) — The Arizona Diamondbacks look to continue their dominance of the San Francisco Giants on Tuesday night at Oracle Park, where left-hander Eduardo Rodriguez takes the mound for the 7:45 p.m. first pitch. Arizona (29-24) has won all six meetings against the Giants this season, including Monday’s 6-2 victory. Rodriguez (4-1) has been a steady presence in the rotation. He faces a San Francisco team (22-32) that has lost seven of its last eight games and sits last in the National League West. PITCHING MATCHUP Rodriguez enters with a solid season record, though recent specifics were not provided. The Diamondbacks have received a boost from the bullpen, with Brandyn Garcia throwing a scoreless inning Monday. San Francisco’s probable starter was not listed, but the Giants have struggled to find consistency. Landen Roupp, a player to watch, took the loss Monday after allowing two earned runs over five innings with seven strikeouts. Roupp has lost his last five decisions, though his peripherals (Interstat) — including 33 strikeouts over his past five starts covering 24.2 innings (Interstat) — suggest better results may be possible. PLAYERS TO WATCH Merrill Kelly, Arizona: The right-hander has been dominant in his last four outings. On Monday, he earned the win with seven innings of two-run ball, scattering four hits and striking out four. In four starts since May 9, Kelly has a 1.69 ERA, including a complete-game win against the New York Mets on May 9 and six strong innings at Colorado on May 15. His only recent blemish came April 28 at Milwaukee, when he allowed six earned runs in 4.1 innings. Landen Roupp, San Francisco: Despite a 0-5 record in his last five starts, Roupp has posted a 3.28 ERA over that span. He has been hurt by a lack of run support: the Giants have scored two or fewer runs in four of those five outings. He struck out seven in each of his last two starts, including Monday. RECENT HISTORY Arizona has outscored San Francisco 29-10 during its six-game winning streak in the series. The Diamondbacks won 12-2 on May 18 and 6-3 and 5-3 on May 19-20 before Monday’s victory. BETTING LINE Interstat’s game simulator projects an 8-4 Arizona win. The Diamondbacks are installed as -1.5 favorites, and the over/under is set at 8 runs. UPCOMING SCHEDULES The teams meet again Wednesday before Arizona travels to Seattle for a three-game series starting Friday. San Francisco heads to Colorado for three games beginning Friday.