Thursday MLB Odds, Sharp Action For Mariners vs. Rangers, Marlins vs. Cardinals (April 21)

Thursday's MLB schedule features a hefty emphasis on day games as seven contests will start before 4 p.m. ET.

However, we'll be focusing on the evening games in this piece, as sharp bettors are looking to capitalize heavily on the later batch of games.

The games we'll be looking at below are as follows:

• Cardinals vs. Marlins, 6:40 p.m ET
• Rangers vs. Mariners, 9:40 p.m. ET

The Action Network's MLB PRO Report has indicated that there are sharp bettors wagering heavily on the games, so let's dive right into it.

Odds and data as of 12:30 p.m. ET on Thursday.

Cardinals vs. Marlins

6:40 p.m. ET