A look at what's happening all around the majors Tuesday:
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BULLPEN BOOST
One day after a blockbuster trade, star closer Aroldis Chapman is expected to join the major league-leading Chicago Cubs for their game at the crosstown White Sox. Chasing their first World Series title since 1908, the Cubs addressed one of their few weaknesses Monday by sending pitcher Adam Warren and three minor league prospects to the New York Yankees for Chapman, a dominant reliever with a fastball that tops 100 mph. "This is a game-changer," Cubs president of baseball operations Theo Epstein said.
LET'S PLAY 2
Following a rainout Monday night, the Mets and Cardinals play a single-admission doubleheader at Citi Field. It was a timely postponement for St. Louis, which didn't arrive in New York until 8:30 a.m. Monday because of travel delays following a nationally televised night game. Monday's scheduled starters, St. Louis' Carlos Martinez (9-6, 2.83 ERA) and New York's Noah Syndergaard (9-4, 2.43), will pitch the first game before Jaime Garcia (7-6, 3.98) faces Bartolo Colon (8-5, 3.48) in the nightcap.
UNBEATABLE BIRD
Chris Tillman (14-2, 3.18 ERA) tries to become the first 15-game winner in the majors when Baltimore hosts Colorado. Tillman is tied with White Sox ace Chris Sale at 14 victories, two shy of his career high set in 2013. Tillman has won four straight starts, all behind seven innings of one-run ball. The Rockies counter with Chad Bettis (8-6, 5.31), who is 4-1 in his last eight starts.
WRIGHT AT THE TOP
AL ERA leader Steven Wright (12-5, 2.67) tests the Tigers with his knuckleball when the Red Sox play host at Fenway Park. The 31-year-old All-Star has won his past four starts and is coming off eight dominant innings in a 13-2 win over Minnesota. Mike Pelfrey (3-9, 4.78) is up for Detroit.
ALL THE WAY BACK
Tyler Skaggs makes his first start in almost two years when the Angels visit Kansas City. The 25-year-old lefty had Tommy John surgery in 2014 and hasn't pitched in the majors since. He was sharp during his minor league rehab assignment, posting a 1.60 ERA in nine starts with 53 strikeouts over 39 1/3 innings. Skaggs is 8-11 with a 4.72 ERA in 31 major league starts.
TRADE BAIT?
Chris Archer (5-13, 4.60 ERA) might be auditioning for contending teams when the Rays right-hander pitches against the Dodgers. The 27-year-old has been the subject of trade speculation despite a disappointing season, although he's coming off one of his best starts this year, pitching six innings of two-run ball with 11 strikeouts in an 11-3 win at Colorado. Bud Norris (5-9, 4.56) goes for Los Angeles.
SHIELDS BACK UP
Resurgent righty James Shields leads the White Sox against the Cubs. Shields allowed 22 runs in his first 8 2/3 innings with Chicago following a trade from San Diego, but has a 2.52 ERA over his last six outings. White Sox hitters, however, have totaled one run in his past three starts while Shields has gone 0-3 despite a 2.08 ERA.