Gio Gonzalez and Madison Bumgarner pitched to a virtual stalemate the first time they opposed each other this year.
With the San Francisco Giants continuing to struggle offensively, more pressure could be on Bumgarner the second time around.
The two left-handers match up again as the Giants visit the Washington Nationals on Tuesday night.
Both pitchers were impressive in Washington's 2-1, 10-inning road win May 22. Each allowed four hits and a run, with Gonzalez throwing 7 1-3 innings and Bumgarner seven.
Bumgarner has gone at least seven innings in his last 10 outings while posting a 1.77 ERA. However, he suffered a 6-1 defeat to Milwaukee on Wednesday after carrying a shutout into the eighth inning.
He yielded four runs - three earned - in giving up more than two earned runs for the first time in 11 games.
It was also the 11th time in Bumgarner's 23 starts that he received two or fewer runs of support.
"For whatever reason, we don't look like the same team we were last year...