There are still unresolved issues with the Mets roster.

The New York Mets find themselves only a few days away from the start of spring training games in Florida with plenty of decisions to make. With the full squad having reported to spring training, the issues the team face has started to grow.

The way the Mets’ offseason has been reviewed by experts and fans alike has come with relatively high approval, but that underscores real questions with the Mets roster headed toward the beginning of a season filled with lofty expectations.

1) The Mets need to determine who will replace injured starter Frankie Montas in their six-man starting rotation.

Pitcher Frankie Montas suffered a high lat strain after feeling discomfort after a bullpen session. Despite the bad injury news, it has not changed the Mets’ stance of opening the season with a six-man rotation. Situations like this were why David Stearns and friends decided to sign four starting pitchers this offseason.

One would figure the top four starters in the Mets rotation are, in some order, Sean Manaea, Kodai Senga, David Peterson, and Clay Holmes, with Tylor Megill probably be the fifth starter. Which leaves one spot open, probably for two players who are currently on the 40-man roster, Griffin Canning, and Paul Blackburn.

Canning, despite a 5.19 ERA last year with the Angels, made 31 starts and pitched 171.2 innings, so he would be an innings eater, something the Mets will need from the back end of the rotation with Montas probably being out until June. Canning was one of the starting pitchers the Mets added this winter, and his early season usage could be immediate.

Blackburn, whom the Mets acquired in a trade last summer, brought mixed results in five starts before a hand contusion injury ended his season. Blackburn is hoping to be ready for Opening Day. He will need to demonstrate health to be considered, and effectiveness to make the rotation ahead of Canning.

It feels like the loser of a potential Blackburn-Canning roster battle will either be the Mets’ long-relief option.

A name not mentioned, top pitching prospect Brandon Sproat, would need a good spring to be considered, but manager Carlos Mendoza appeared to have shut that window down for the moment.

2) The Mets need to figure out which infielder(s) to carry for their bench.

Pete Alonso’s return to the Mets solidified their Opening Day starting infield, with him, Jeff McNeil, Mark Vientos, and Francisco Lindor being the starters in the infield.

With Starling Marte platooning at DH and Taylor serving as a 4th true outfielder, in only really leaves one spot left, the backup infielder. Nick Madrigal, Luisangel Acuna and Brett Baty are the only three healthy backup versatile infielders on the 40-man roster.

Madrigal is currently the favorite to make the team because the team would want to ensure Acuna and Baty get playing time to help with their development. Madrigal would likely reprise the role he had with the Cubs of playing at either second or third base with the hope to see more results at the plate, as he hit just .221 last year with an upside of being a tough hitter to strike out.

With Acuna, it is hard to overlook the impact he made in his first action in the majors last season, demonstrating what he can do at the plate and in the field. The question will be, however, is if he will force his way onto the Mets roster by playing well this spring. If he does, that would open up several avenues for the Mets to construct their roster, such as trading Starling Marte or Jeff McNeil to reserve a spot for Acuna.

Ronny Mauricio and Jett Williams are probably reaches, despite perhaps being more talented than any of the above options. Mauricio is still recovering from the ACL tear he suffered in winter ball last year, and Williams has only played six games at Triple-A, and the Mets are not likely to bring Jose Iglesias back.

3) The Mets will need to decide who completes the team’s Opening Day bullpen.

The Mets enter spring action with roughly a good idea of who most of their bullpen arms will be when the season starts. Edwin Diaz, A.J. Minter, Jose Butto, Reed Garrett, and Ryne Stanek look like safe bets to be on the Opening Day roster barring injury.

The frontrunners for the final bullpen spots are Danny Young, Sean Reid-Foley, Dedniel Nunez, and Huascar Brazoban, and for good reason. All of these pitchers, except for Reid-Foley, have had career Fangraphs Stuff+ ratings of 107 or higher. It speaks to David Stearns’ philosophy of emphasizing pitching talent which proved effective last year. All of these pitchers, except for Young (who has just a sweeper and a sinker), average 95 mph or higher on their fastballs.

However, will the loser of the expected battle between Griffin Canning and Paul Blackburn for the final rotation spot also be good enough to deserve a spot in the bullpen as a long reliever? That could be a wild card of the roster-ology puzzle that the front office may need to consider, which would leave multiple high-upside relievers in the minor leagues if the spring sends the roster in that direction.

If the front office is not confident that their rotation can go deep enough into games early that it warrants the over-taxation of a bullpen, would it necessitate a starting pitcher to serve as a swingman to keep their key relievers fresh? With the Mets scheduled for three off days in their first 15 days of the regular season, they might be able to get away with not addressing that problem, which surfaced like this last year when Kodai Senga got hurt. But like last year, that will be an issue the Mets will need to be resolved.