MLB.com fantasy expert Fred Zinkie fielded questions from fans during a live Twitter chat (at @fantasy411) on Monday. Read through the best of the Q&A below. Questions and answers have been edited for clarity.
@MDAntonio91: Should I start Justin Verlander at Colorado or R.A. Dickey for two starts? Also, should I start Ryon Healy or Logan Morrison?
Fred Zinkie: Dickey and Healy. I can't recommend Verlander (or almost any other starter) on the road at Coors Field.
@al9x1: Is it time to stash Ronald Acuna?
Zinkie: I wouldn't stash him in a mixed league. But he has exciting potential for 2018. I would rather stash Willie Calhoun for September.

@DbLaZe802: Which reliever should I add out of Richard Parker and Jake McGee?
Zinkie: Add Parker. I'm not convinced that McGee will become a full-time closer.
@DN1CE23: Do you expect Ian Desmond to have a strong finish to the season when he returns from the disabled list?
Zinkie: I'm not looking for a big finish from him. The Rockies have a crowded roster.
@willyedwards11: Which reliever would you rather use right now out of Greg Holland, Dellin Betances and Juan Minaya?
Zinkie: I would use Betances. He can rack up whiffs and collect saves.

@MarkAPier: Should I cut Matt Kemp and add Josh Reddick?
Zinkie: No, stick with Kemp. He could be productive now that he is healthy.
@avfcdebate: Which returning starter interests you the most out of Johnny Cueto, Matt Harvey and Aaron Sanchez?
Zinkie: I'm most optimistic on Cueto. I wouldn't pick up Harvey or Sanchez.
@__MeatBall: I am starting my playoffs. Do you have an injury update on Bryce Harper?
Zinkie: There is no firm timetable. You will need to drop him if you need the roster spot for your playoffs.
@DMacNoodle: Which infielder should I drop out of Javier Baez, Didi Gregorius and Whit Merrifield?
Zinkie: Drop Baez. I couldn't drop Merrifield or Gregorius.
@sowrongitsdyce: Which catcher should I add out of Robinson Chirinos, Wilson Ramos, Brian McCann and James McCann?
Zinkie: Go with McCann, who should be valuable now that he is back from the disabled list.
@nmach10: Which catcher would you rather own out of Yadier Molina, Ramos, Jonathan Lucroy and Mike Zunino?
Zinkie: Molina is my pick. He has been quite productive this season.
@DougNelson123: For the rest of the season, choose one of Shane Greene, Seunghwan Oh and Arodys Vizcaino.
Zinkie: I'll take Vizcaino. All three are risky.

@ChrisYohe1: Please rank J.A. Happ, Aaron Nola, Jon Gray and Luke Weaver.
Zinkie: Nola, Weaver, Happ, Gray.
@dooglives: Would you rather add Parker or Tyler Lyons?
Zinkie: I'm going with Parker. I don't know if Lyons will emerge from the instability in St. Louis.
@pierretong: Should I drop Yoenis Cespedes?
Zinkie: You should send him to waivers. Even if he returns, he will likely miss most of September.
@kelvincorntooth: Do you trust that Weaver and Mike Montgomery will get two starts this week?
Zinkie: I trust Weaver more than Montgomery. He is the one that I would start.
@EHolthe25: Which two players should I drop out of Yoan Moncada, Hanley Ramirez, Trevor Story and Todd Frazier?
Zinkie: Drop Moncada, Frazier.
@georgedolak: Which closer would you add out of Cam Bedrosian, Zach Britton, Brad Brach and McGee?
Zinkie: I'll take Britton out of that group.
@Brandonwyrick17: Which possible September callup would you stash?
Zinkie: Calhoun is my pick.
@D_Huff6: Which two closers would you own for the rest of the season out of Alex Colome, Raisel Iglesias and Brad Ziegler?
Zinkie: Colome, Iglesias.