A look at what's happening around the major leagues Saturday:

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Both Championship Series are in action, with the AL's Blue Jays and Royals playing Game 2 in Kansas City at 4:07 p.m. EDT and the NL's Cubs and Mets beginning their series in New York at 8:07 p.m. EDT.

ROYAL HEAT

Hard-throwing Yordano Ventura pitches for Kansas City, meaning some Toronto hitters might be reaching for lighter bats. Ventura led all qualified major league pitchers with an average fastball velocity of 96.3 mph, according to Fangraphs. That heat didn't help much in the ALDS, though, when Ventura gave up a pair of home runs and had a 7.71 ERA over seven innings vs. Houston. Ventura had closed out the regular season with four consecutive homerless starts, a span of 25 innings.

PRICE CHECK

David Price gets the nod in Game 2 for the Blue Jays after making a pair of appearances in the ALDS, including a relief outing in the team's Game 4 win over Texas. Price has a 7.20 ERA over 10 innings this postseason, a stark downturn from his 2.30 ERA over the season's final two months following his trade from Detroit to Toronto.

DANIEL IN DEMAND

Mets fans are calling for New York to bring back pending-free agent Daniel Murphy following his outstanding performance in the NL Division Series. Murphy hit three homers as the Mets knocked out the Dodgers, including a go-ahead shot off Zack Greinke in a 3-2 Game 5 win. The 30-year-old will be a free agent after the postseason following a season in which he hit .281 with 14 homers. According to Fangraphs, his 2.5 Wins Above Replacement tied for 10th among major league second basemen.

DARK KNIGHT'S NIGHT

The Batman masks will be out in force at Citi Field when Matt Harvey makes his second postseason start. Nicknamed ''The Dark Knight,'' Harvey has fallen into a love-hate relationship with New York that Bruce Wayne would appreciate. Harvey was one of the NL's better pitchers this season in his first year back following Tommy John surgery, and still he drew the ire of the fan base over a late-season kerfuffle regarding his innings limit and for showing up late to the team's first postseason workout. Love him or not, Mets fans have taken to sporting Batman masks when Harvey pitches at Citi Field.

BEEN THERE, DONE THAT

Jon Lester will be making his 14th start and 16th appearance in the postseason, where he owns a 2.66 ERA. He lost his only start so far in these playoffs to old friend John Lackey in Game 1 of the NL Division Series, allowing three runs over 7 1-3 innings. The left-hander signed a six-year, $155 million deal with the Cubs in the offseason, a move that signaled Chicago's attempted pivot toward contention.

SEASON SERIES

Chicago has won a team-record nine straight games against New York, including seven wins this season by a combined score of 27-11. The teams haven't played since July 2, though, and the Mets have overhauled their offense since with the additions of Yoenis Cespedes, Michael Conforto, Kelly Johnson and Juan Uribe, as well as the returns of Travis d'Arnaud and David Wright from injury.

PHILOSOPHICAL DIFFERENCES

The Cubs and Mets rebuilt their rosters over the past half-decade in contrasting styles, with Chicago stockpiling offensive prospects and New York loading up on arms. In the second half of this season, though, it was the Mets who led the NL in home runs (102) and runs (373), with Chicago ranked second in each category. Meanwhile, the Cubs ranked second in second-half ERA (3.42), while the Mets ranked seventh (3.72).