With 14 MLB games in action, there are plenty of player props to choose from. Let's go through the best player props to add to your bet slips this Monday, August 15.MLB Player Prop #1: Pick: Joe Musgrove Over 5.5 Strikeouts (-115)Miami Marlins vs. San Diego Padres Match DetailsFixture: San Diego Padres @ Miami MarlinsDate & Time: Monday, August 15, 6:40 p.m. EDTVenue: LoanDepot Park, Miami, FloridaMusgrove will take on a slumping Marlins team on Monday. He shut down Miami earlier this year, striking out eight and giving up two runs, and the lineup is even weaker now, comparatively. Rob Friedman@PitchingNinjaJoe Musgrove, Wicked 82mph Curveball. 🤢32316Joe Musgrove, Wicked 82mph Curveball. 🤢 https://t.co/lfJh6unjBe"Joe Musgrove, Wicked 82mph Curveball." - Rob FriedmanMiami ranks top 10 in the MLB in strikeout rate, so look for Musgrove to rack up the Ks in the series opener.MLB Player Prop #2: Pick: Mookie Betts Over 0.5 Runs Scored (-105)Milwaukee Brewers vs. Los Angeles Dodgers Match DetailsFixture: Los Angeles Dodgers @ Milwaukee BrewersDate & Time: Monday, August 15, 8:10 p.m. EDTVenue: American Family Field, Milwaukee, WisconsinMookie Betts is batting leadoff tonight against the Milwaukee Brewers. The Dodgers' outfielder is slugging a sky-high .573 against right-handers with above-average flyball rates over the last two seasons. SportsNet LA@SportsNetLAMookie Betts to dead center! 1811148Mookie Betts to dead center! 💣 https://t.co/QeWstuPWvd"Mookie Betts to dead center!" - SportsNet LABrewers' starter Freddy Peralta is just coming back from injury, but he had a flyball rate of 32.4% last year. Betts will also be playing in a park that benefits hitters more so than it does pitchers, so look for him to get on and score tonight.MLB Player Prop #3: Pick: Ian Happ Over 1.5 Total Bases (+148)Washington Nationals vs. Chicago Cubs Match DetailsFixture: Chicago Cubs @ Washington NationalsDate & Time: Monday, August 15, 7:05 p.m. EDTVenue: Nationals Park, Washington, D.C.Ian Happ hits for a lot of power pitchers who throw a lot of breaking balls. Josiah Gray, the Nationals' starter tonight, throws his slider 29% of the time and his curveball 25%. Josiah Gray has had an up-and-down year, and recently he's allowed four or more earned runs in four of his previous seven starts. Look for Happ to have a solid game from the three-spot in the Cubs' order.Last 15 Days MLB Picks are: 90-70-3 (+136.0 Units)