A look at what's happening all around the majors today:
SOUTH SIDE SHOWDOWN
Cubs ace Jake Arrieta (12-4, 2.60 ERA) takes the hill in the opener of a two-game interleague series at the crosstown-rival Chicago White Sox. Arrieta is 2-0 with a 2.75 ERA in three starts against the White Sox as a member of the Cubs. The rested Cubs are in the middle of a five-game trip in which they did not need to board a plane - they took a bus to Milwaukee for their three-game series against the Brewers. Miguel Gonzalez (2-5, 4.41) is up for the White Sox.
BACK BY THE BAY
The Giants return home to face the Reds following a 1-7 road trip. Right-hander Jake Peavy (5-8, 5.15) accounted for one of those seven losses, allowing four runs in six innings in a 4-0 loss to Boston in his last start. Reds right-hander Anthony DeSclafani (5-0, 2.50) has been unbeatable after beginning the season on the disabled list. Last time out, he threw eight innings of two-run ball in a 6-3 win over Atlanta.
RED SOX RE-DO
Drew Pomeranz (8-7, 2.83) makes his second start since being traded to the Red Sox when Boston hosts the Tigers. Pomeranz did not get a decision after allowing five runs over three innings in his first start, against San Francisco. Detroit sends out Justin Verlander (9-6, 3.74), who held Minnesota to a run and two hits over eight innings in a 2-1 loss his last time out.
Cardinals righty Carlos Martinez (9-6, 2.83) faces the New York Mets' Noah Syndergaard (9-4, 2.43). Martinez logged seven innings in a 4-2 win over San Diego in his last start despite suffering a bloody nose.
WELCOME ABOARD, SHIPLEY
Prospect Braden Shipley will make his major league debut for the Diamondbacks in a game at Milwaukee. The 2013 first-round pick has a 3.70 ERA with Triple-A Reno, walking just 22 batters in 119 1/3 innings. Chase Anderson (4-10, 5.50) will pitch for the Brewers.
The Marlins' Ichiro Suzuki, who didn't start during a three-game series against the Mets, struck out as a pinch-hitter in the seventh inning Sunday and remained four hits shy of 3,000.