Crucial matchups to watch in ALCS, NLCS: Can Cubs cool down Justin Turner?

Justin Turner heads into the NL Championship Series with a .400 average, including a triple and a homer, and five walks in 22 at-bats. Brian Rothmuller/Icon Sportswire

The key battles to watch in the next week-plus.

Justin Turner versus any Cubs pitcher

Turner's 13-pitch at-bat against Max Scherzer in Game 5 was a crossroad in the game because it did two things: slowed Scherzer's momentum, and accelerated his decline. This was not a case of a hitter nicking pitches and merely staying alive; Turner was on everything. Scherzer was throwing 96-97 mph, had a great changeup and his wipeout slider, and he could not get the ball by the Dodgers' third baseman.

When the at-bat began, Scherzer was in control of the game, and by the end of the at-bat, Scherzer and the Nationals were damaged -- and it was Turner who delivered the big hit later in the game, a two-run triple against Shawn Kelley.

Turner is hitting .400 this postseason, with a .591 on-base percentage and .733 slugging percentage. He has a .444 batting average and a 1.295 OPS in his postseason career, and half of his 16 postseason hits are extra-base hits.

On Saturday, he becomes the problem of Jon Lester and the other Cubs pitchers. He's also a free agent in a few weeks and is going to make lot of money.

The back of the Indians rotation against their Blue Jays counterparts