Chicago Cubs bubble roster projections: Who are the last 3 in, last 3 out?

Chicago Cubs bubble roster, last 3 out - 2. Miles Mastrobuoni

I liked what I saw from Miles Mastrobuoni in the World Baseball Classic. However, the Cubs have plenty of infield defense with Nick Madrigal and Patrick Wisdom. Mastrobuoni is an exceptional player to have to wait at Triple-A Iowa, and he will almost certainly be called up at some point in the season if an injury occurs. In the meantime, I don't expect him to break camp with the main roster, but he should be one of the first to get a chance if he exceeds expectations in Iowa.

Whoever first sees playing time at the MLB level will likely be a battle between Mastrobuoni and McKinstry. Both are versatile defensively but have yet to see the offensive results carry over from the minors to the majors. In the WBC, Mastrobuoni showed an ability to go the other way, even taking Cubs pitcher Roenis Elias deep into the left-center gap in Team Italy's matchup against Team Cuba. Mastrobuoni, unlike McKinstry, has never truly been given a chance to shine in the MLB, and he deserves one.