During the Diamondbacks game against the Cubs at Wrigley Field, scores of protesters wave signs and chant, “Boycott Arizona! Boycott Arizona!” on the sidewalk outside the ballpark. The demonstration is in response to the state’s recently enacted illegal-immigration law, with organizers hoping the movement will inspire baseball fans to stay away from contests that feature the team from The Grand Canyon State.

Roy Halladay loses his third consecutive complete game, a 1-0 defeat at Boston’s Fenway Park. The hard-luck Blue Jays right-hander is the first pitcher to suffer such an indignity since Randy Johnson lost three straight complete-game decisions in 1999, and becomes the first Toronto hurler since Jim Clancy had a similar streak in 1982.

The Atlanta Braves complete an 0-7 road trip by falling to the St. Louis Cardinals, 10 – 4. David Freese hits his first home run of the year and drives in 6 runs to give Adam Wainwright his 4th win. Atlanta has now lost 9 in a row after a strong start.

Dontrelle Willis’s comeback continues as he pitches his best game since joining the Detroit Tigers before the 2008 season. He gives up only 4 hits and no runs in 7 innings as Detroit blanks Minnesota, 3 – 0. He picks up his first win of the year – which is only his second for the Bengals. In the contest, Magglio Ordonez hits the 300th home run of his career, four years to the day after hitting number 200.