Assuming the Twins start the season with 13 position players and also assuming that there are no significant injuries to the leading 13 position players, it seems almost set in stone who is breaking camp for the Twins. Those players will be Kurt Suzuki, Josmil Pinto, Joe Mauer, Kennys Vargas, Brian Dozier, Danny Santana, Eduardo Escobar, Trevor Plouffe, Oswaldo Arcia, Aaron Hicks, Torii Hunter, Jordan Schafer, and Eduardo Nunez. Really only Hicks and Nunez leave any doubt, but it is hard to see the team going any other way (I don't really care for Nunez on the roster, but he is very cheap and at least runs well).

I decided to go through the list of players both on and off the 40-man roster who could be next up for the Twins, whether it be for injury or performance reasons, and whether it be for prospect development or mere roster completion.

The other position players on the 40-man roster besides these 13 are: SS/2B Jorge Polanco, 3B Miguel Sano, C/LF/RF Chris Herrmann, OF/2B Eddie Rosario, and OF/1B Max Kepler.

Four of these players are prospects, and only one of those prospects has any time in MLB (Polanco). Polanco needs seasoning in AA and AAA before coming back to the Twins. After being very successful in A+ ball (.291/.364/.415), he definitely struggled at times in AA (.281/.323/.342). He did have 36 extra base hits (seven homers) and 17 steals for the year, while his 55/88 BB/K rate between the two levels is respectable. It is important to remember that Polanco is almost two months younger than Sano.

Speaking of, Sano should join the Twins at some point this season, though it seems unlikely to be before the All-Star break. The Twins will want him to dominate AA (he may be asked to do the same in AAA too). I would expect Sano to simply replace Nunez on the roster, but obviously play almost every day. The Twins are going to have to figure something out with Plouffe, as I can't see the Twins moving Sano to any other position during the season. Sano boasts a career .940 OPS in 1606 plate appearances in the minors.

Rosario needs AA seasoning as well, though he was very successful in the AFL. He might position himself to move up with Sano. I would expect him to replace Schafer on the roster, but play almost every day. Rosario managed only a .237/.277/.396 line at AA last season, but in the AFL his numbers improved to .330/.345/.410, with 10 steals.

Max Kepler posted a .264/.333/.393 line at A+ last season, but had AFL success too (.307/.366/.440). He is the farthest from MLB of any of these prospects. He should spend a full season in Chattanooga.

Chris Herrmann graduated from prospect status at some point in 2013. He provides another catching option while providing depth in the corner OF positions. The Twins like him and feel safe with adding him if they need a player while someone else goes on a DL stint. He has struggled in MLB, but finally started to pound AAA pitching with an .878 OPS in 228 plate appearances for Rochester in 2014.

There are players not currently on the 40-man roster who would obviously need someone else off or someone placed on the DL to get a chance to play for the Twins.

Eric Fryer and Dan Rohlfing are two catchers playing for Rochester who could get a chance with the Twins in 2015. Fryer spent significant time with the big league club last year (.578 OPS) and would be the most likely fill-in if Suzuki or Pinto are injured for any longer amount time. Rohlfing is a nice all-around player who needs to get his bat going in AAA to be taken seriously (.618 OPS in 2014 there).

The infielders who could move up from Rochester are utility players James Beresford and Doug Bernier, and 1B/corner OFs Brock Peterson and Reynaldo Rodriguez. Beresford (.674 OPS, with 28 doubles for Rochester in 2014) just turned 26 and must be considered before the aging Bernier (.744 OPS in 2014 for Rochester). He is very consistent both offensively and defensively and would fill in nicely for as a utility player either for Escobar or to replace someone else if Escobar became the starter for a period of time. Peterson and Rodriguez have had ample minor league slugging success (Peterson has hit 40 homers in the past two years, and Rodriguez has hit 43). The path to the Twins for these two is pretty steep, though Rodriguez could be a nice bench bat as a RH guy with some power.

The outfielders for Rochester are three aging players and Danny Ortiz, who is a marginal prospect at this point mainly because he simply does not take any walks. Eric Farris (.671 career AAA OPS), Shane Robinson (.708 career AAA OPS), and Wilkin Ramirez (.726 career AAA OPS) are not worthy of MLB consideration anymore, though Farris is speedy and can also play second base. Ortiz has put up solid enough numbers and finished 2014 with a .285/.308/.462 line and 12 homers between AA and AAA. Unfortunately, he struck out 85 times while walking only 13 times. He is able to play all three OF positions, though CF is a bit of a long shot.

Last--but certainly not least--there is Byron Buxton, future CF for the Minnesota Twins. Buxton will start in a ridiculously loaded AA lineup in Chattanooga (with Sano, Rosario, Polanco, etc.). Buxton posted a .240/.313/.405 line with four homers and six steals in 134 plate appearances in A+ ball in 2014. Given the freak injuries of a year ago, Buxton's development has been stunted. I don't see him arriving in Minnesota before September this year.

On top of the 13 players likely breaking camp with the Twins I have added 13 players who could see time with the club in the near future. Five of them are already on the 40-man roster and have the inside track to joining the Twins, but I wouldn't be surprised to see a few of the guys not currently on the 40-man roster to make an appearance, especially Fryer, Beresford, and Ortiz.