This article is part of our Regan's Rumblings series.
It's that time of year. We've seen quasi NFL football games, Wild Card races are tight, and fantasy baseball owners are either making a push to get in the money or are planning for 2020. In my experience, fantasy leagues usually have a later trade deadline than MLB, so I've been seeing lots of prospects for veterans deals going down. That got me thinking about which veterans have increased their keeper value the most this year. This list is by no means exhaustive, so if you have questions about guys not covered below, feel free to leave me a note in the comments section.
Ketel Marte, OF
Marte has logged just 10 games at short this year, so he could lose 2020 eligibility there, which hurts, but he will still have 2B and OF eligibility. Marte entered 2019 coming off a solid, but unspectacular, 2018 that saw him hit .260 with 12 homers and six stolen bases. This year he's hitting a stunning .320/.381/.568 with 25 home runs and eight steals. A 52-point BABIP increase to .334 has helped, but his Statcast metrics (barrel rate, launch angle, exit velocity and hard hit rate) are all up significantly. In particular, he's pushed his launch angle from 5.7 degrees last year to 11.5 in 2019. I suspect some element of luck in his batting average, but he's got good speed and is hitting the ball harder, so .290 to .300 the rest of the way isn't out of the question. Marte