MLB Player Props Today | Best MLB Player Prop Bets Tonight June 21

There are 15 games on the schedule today, which gives us a ton of MLB prop bets to choose from. In this article, we take a look at the best MLB player props and give you three of our favorite prop bets, along with free baseball bets to get in on the action. Read on for the best MLB player props for today, June 21.

Take our Best MLB Player Props Bet of the Day: Sean Manaea Over 5.5 Strikeouts (-110) odds at BetOnline.

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MLB Player Props | Best MLB Prop Bets Today (June 21)

On a full MLB slate, we will give one batter that has a very good shot at going yard, another batter that is in a prime spot to collect an RBI, and one pitcher who is in a great spot to strike out a lot of batters for our best MLB player props for June 21.

Get our best MLB player prop bets for tonight below.

MLB Player Props Today (June 21): Sean Manaea Strikeouts (-110)

Sean Manaea Strikeouts Odds Play
Over 5.5 -110 BetOnline logo
Under 5.5 -115 BetOnline logo

Sean Manaea will take the mound against the Arizona Diamondbacks for the second time this season. In the first game, he went seven innings and allowed zero hits, one walk, zero earned runs, and struck out seven in a win. Manaea absolutely dominated the Diamondbacks earlier this season and Arizona’s offense is not a very threatening one. The Diamondbacks strike out the third most out of any team in the league and they are bottom 10 in many batting categories.

Christian Walker is 0/8 with a strikeout, Carson Kelly is 0/7 with two strikeouts, Pavin Smith is 0/2 with a strikeout, and David Peralta is 1/7 with one strikeout against Manaea. Arizona is bottom 10 in the league in hits, RBIs, and batting average versus left-handed pitchers. Christian Walker is the only batter on the team with double-digit home runs but Manaea has his number.

Manaea has struck out six batters or more in seven out of 12 games started and he has struck out less than five batters in just one game this year. Opposing batters are hitting just .219 against Manaea on the year. In a matchup against a team that strikes out the third-most in the league, Manaea will rack up the punchouts. Take the over in strikeouts for Manaea with confidence.

To bet on Sean Manaea Over 5.5 strikeouts (-110) at BetOnline, click the button below.


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MLB Player Props Tonight (June 21): Didi Gregorius RBI (+225)

Didi Gregorius RBIs Odds Play
Over 0.5 +225 BetOnline logo
Under 0.5 -320 BetOnline logo

Didi Gregorius gets to hit in a lineup that is stacked, so his chances of getting an RBI are good, no matter where in the lineup he bats, but he has been hitting near the top of the order recently. He has only played in 32 games this year but he has a .280 batting average and has 12 RBIs. Since his return on June 5 after missing a month of action, he has gotten at least one hit in nine out of 14 games.

Gregorius will take on a pitcher whom he has had a lot of success against. He is 5/14 with three home runs and four RBIs against Martin Perez. Perez has been playing a lot better than his career average indicates and regression will kick in for him. He has a 2.10 ERA and 1.11 WHIP but he has not had a season with an ERA under 4.50 since 2016 and he has only had one season with a WHIP under 1.40 since 2014.

The Phillies are top five in the MLB in home runs and RBIs against left-handed pitchers. Wherever Gregorius bats in the lineup tonight, he will be in a very good position to knock in a runner. With a lot of success against Martin Perez, Gregorius will collect an RBI in this game.

To bet on Didi Gregorius Over 0.5 RBIs (+225) at BetOnline, click the button below.


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Best MLB Prop Bets Today (June 21): Rafael Devers Home Run (+310)

Rafael Devers to Hit a  Home Run Odds Play
Over 0.5 +310 BetOnline logo
Under 0.5 -475 BetOnline logo

Rafael Devers is having himself an excellent season thus far. He has a .330 batting average, 53 runs, 89 hits, 16 home runs, and 43 RBIs on the year. Out of the 16 home runs, 13 of them have come against right-handed pitchers. Devers has been the best player on the Red Sox, leading the team in runs, hits, home runs, and SLG.

Devers gets a good matchup tonight against pitcher Beau Brieske. Brieske has a hard hit % of 41.9, an xBA of .297, and an xSLG of .563, which are not very good. He has allowed one home run or more in four out of five road starts on the year. Brieske has allowed two home runs or more in five out of 10 games started. He allows a lot of contact on the ball, as he only strikes out 16% of batters.

After hitting a home run in four straight games, Devers has not had a home run in five games. He is due to homer and this is a perfect spot for him to go yard against Brieske. With Brieske struggling on the road and giving up the long ball, Devers makes for a great pick to go yard tonight. Take Devers to hit a home run.

Bet on Rafael Devers Over 0.5 Home Runs (+310) at BetOnline by clicking the button below.