Reminder: Always double check the lineup card before rosters lock to make sure that a player you've chosen to roster is playing that day, and check the weather to make sure your players won't get rained out of their game.
Pitcher: Jose Fernandez ($10,700) vs San Diego Padres
In some ways, Fernandez has looked even better than ever in his return from TJ surgery with elevations in average fastball velocity and swinging strikes and a reduction in walk rate. He has a K% just under 30% and will face the high strikeout Padres offense, who strikeout about 22% of the time vs RHP, fifth highest. Fernandez pitches at home in Marlins Park, a pitcher friendly environment, and will be a strong candidate to rack up a high strikeout total without giving up many (or any) runs against the bottom third Padres offense.
Third base: Evan Longoria ($2,900) vs Wade Miley
Longoria has a 139 wRC+ and .170 ISO in 273 PA vs LHP since 2014 and gets a park upgrade in Fenway. Miley has been below average vs RHB this year with a .273/.352/.448 opp. slash line and 4.44 FIP.
Shortstop: Jhonny Peralta ($2,900) vs Yohan Flande
Peralta has a 138 wRC+ and .237 ISO in 258 PA vs LHP since 2014. Flande's sample size at the MLB level is very small, but ZiPS projects him to have an ERA over 5 the rest of the season.
Brewers righties vs Clayton Richard in Miller Park
Richard has been ineffective vs RHB since 2012 and I don't see anything about his small 2015 sample that points towards anything different. In 215 IP vs RHB since 2012, Richard has given up a .285/.332/.512 slash line with a 5.55 FIP. Some cheaper, $2,000s range options: catcher Jonathan Lucroy had Saturday off to allow him to play Sunday and is priced at $2,800. Khris Davis will get more playing time now with Gerardo Parra traded and is $2,500. Miller Park is one of the better hitter's parks in the game, increasing the chances for run scoring.
Follow me on Twitter at @TimFinn521, I usually tweet out more good options as lineups are released.