The Cubs announced their playoff roster, but will wait until later to announce today's starting lineup. From cubs.com:
There aren't really any surprised here except for the Cubs opting to go with two backup starting pitchers. We knew for sure that Jon Lester would be available in case something happened to Arrieta early in the game. It's surprising to see Kyle Hendricks on the roster. I was pretty sure Jorge Soler would be on the roster, but Maddon didn't play him a whole lot after he came back from injury so I wasn't sure. I'm glad to see he's on the roster.