MLB Players To Grab Before the Offseason for Dynasty/Keeper: Corner Infield

As we hit the final weeks of the fantasy baseball season and many turn their minds to fantasy football, there is an opportunity for you to take advantage. It is easy to see and jump on players who break out early in the season, but many miss those who perform well late.

This week, I will walk position by position and look at some players who may have more value than you think and could not only help your team down the stretch but in 2027 as well.

Today, we look at three MLB corner infielders who look the part and have provided value, but are still underrostered. Looking for a corner infielder for 2027 or to help down the stretch? This article should help you out.

MLB Corner Infielders to Grab Before the 2026 Season Ends

Coby Mayo, CI, Baltimore Orioles

It feels like an eternity since Coby Mayo was a top prospect, but inconcistent playing time and performance in Baltimore sunk any fantasy value he had. But very quietly, Mayo has put some things together and has started looking viable in his age 24 season.

In 385 plate appearances, Mayo has 21 home runs, but since the All-Star break, things have really clicked. In 134 plate apperances with regular playing time, Mayo has nine home runs to pair with five doubles and three triples. He is slashing .282/.336/.589 over that span.

The underlying data supports the performance as well as Mayo has a strong 106.2 mph 90th percentile exit velocity to pair with a 114.2 max and 90.4 mph average exit velocity. The bat speed is elite and the launch angles have taken a significant jump, leading to a 16.5 percent barrel rate in the second half.

The contact is still a bit of an issue, but the 81 percent in-zone mark is playable when you have the kind of power he does. The approach is a red flag as the chase rate is the highest of his career and the zone-swing rate is also below average.

At the end of the day, I do think Mayo has found something. There has been notable improvements in the bat speed and some slight mechanical changes have paid dividends. Mayo looks to be a 30-homer bat in 2027 and at this point, as hard as it is for me to say it, would you rather have Mayo or Austin Riley moving forward?

With Mayo rostered in just 59 percent of Fantrax leagues he should be available to be picked up.

Tim Tawa, CI/OF, Arizona Diamondbacks

Tawa had a brief moment last year in his short MLB stint where he looked like a viable option. It did not last long and he wound up back in Triple-A this year. He mashed, but it was kind of to be expected for a 27 year old who had 225 MLB plate appearances.

Upon getting regular playing time in Arizona in July, he has hit and shown traits that should continue to lead him to be a regular in Arizona moving forward. Over his last 204 plate appearances, Tawa has eight home runs and doubles to pair with seven stolen bases. He is slashing .273/.317/.444 over that span.

It is not a perfect profile, but Tawa has been running a 51 percent hard-hit rate to pair with an 11 percent barrel rate. The 90th percentile exit velocity of 105 is legit, but the bat speed is very underwhelming at 70 mph.

Tawa will likely never run high OBPs thanks to a higher chase rate, but he puts enough balls in play and hits it hard enough to be viable in 15-team or deeper fantasy leagues. He’s going to chip in some steals as well, which makes for an interesting profile. He is 35 percent rostered, making him an easy pick-up if you want to see where Tawa takes you in 2027.

Casey Schmitt, CI/OF, San Francisco Giants

Schmitt made some notable gains in 2026 before his season ended early due to a meniscus tear. He will have a normal offseason, and be ready for Spring Training in 2027. Across his 409 plate appearances, Schmitt hit 21 home runs and even stole nine bases. He has an attrocious 2.7 percent walk rate, but still slashed .271/.301/.483.

The performance gains were backed by a one mph increase in bat speed, but he also saw a leap in exit velocity data. There were a few mechanical tweaks as far as where Schmitt set up in the box and he was more closed in his stance.

The 27-year-old reached a new high max exit velocity of 112.3 mph and ran a 90th percentile just shy of 105 mph. The 46 percent hard-hit rate came with one of the best sweet-spot rates in baseball, which led to a 12 percent barrel rate.

The 36 percent chase rate was an issue, which led to the worst walk rate in baseball, but Schmitt made up for it by having a strong zone-swing rate of 72 percent. The zone-contact rate of 89 percent was also highly impressive and a jump of four percentage points from last year.

There were split issues, but Schmitt still managed to hit 10 home runs at Oracle Park in just 175 plate appearances there. Schmitt is elibigle at 1B, 2B, 3B, and OF and being available in 40 percent of Fantrax leagues makes him a valuable offseason IL stash.