10 a.m. on ESPN, “MLB Preseason Baseball’’ — With the 2014 regular season a few days away, teams go about the business of evaluating players and making their final cuts. Two that figure to go far this year clash today in Jupiter, Fla., where Matt Holliday and the St. Louis Cardinals host Bryce Harper and the Washington Nationals. The Nats hope to put a disappointing 2013 behind them this year, while the Cards hope to improve on their National League championship of a year ago.

8 p.m. on (CW), “Arrow’’ — Frank Bertinelli (Jeffrey Nordling) is arrested, and Laurel (Katie Cassidy) is selected to try his case, making her a target for his daughter, Helena (Jessica De Gouw) — aka the Huntress. Oliver (Stephen Amell) tells Sara (Caity Lotz) he can handle the situation, but he can’t stop her from acting when Helena takes Laurel and others hostage at the courthouse. Colton Haynes and Willa Holland also star in the new episode “Birds of Prey.’’

8:30 p.m. on 2 9,”Suburgatory’’ — Tessa (Jane Levy) isn’t sure how to react when Lisa (Allie Grant) announces she’s proposing to Malik (Maestro Harrell), so she seeks advice from George (Jeremy Sisto). Unfortunately, the proposal doesn’t go as planned. George suspects that his girlfriend (Natasha Leggero) is being rude to her subordinates at work in the new episode “Catch and Release.’’ Carly Chaikin also stars.

9 p.m. on 6, “Criminal Minds’’ — Complications from his stabbing have Hotch (Thomas Gibson) fighting for his life and having visions of his late wife, Haley (Meredith Monroe), and his nemesis, the Reaper (C. Thomas Howell). The rest of the team investigates the estranged father of a missing teen as a possible suspect in her disappearance. Joe Mantegna and Shemar Moore also star in “Route 66.’’

9 p.m. on (CW), “The 100’’ — Clarke, Bellamy, Octavia, Finn and Monty (Eliza Taylor, Bob Morley, Marie Avgeropoulos, Thomas McDonell, Chris Larkin) go in search of Jasper (Devon Bostick). What they discover gives them a shock. On the Ark, Abby (Paige Turco) asks Raven (Lindsey Morgan) to help her make an escape pod in the new episode “Earth Skills.’’ Isaiah Washington also stars.

10 p.m. on 6, “CSI” — In this episode, Russell (Ted Danson) and his colleagues investigate a murder and robbery at a high-stakes poker game.