The Baseline Top 6: Baseball-pitching tennis stars

Thursday marked the MLB's opening day with 15 games played around the country. In honor of the big day for baseball, here's a look at tennis stars that have crossed over to baseball.

1

James Blake

The Miami Open tournament director took a few swings in 2008 at a Florida Marlins vs. New York Yankees game in Marlin Park, not far from the Hard Rock Stadium.

2

Bille Jean King

In 2012, the Philadelphia Freedoms co-owner threw out the first pitch before the start of the Philadelphia Phillies vs. Houston Astros game in Philadelphia.

3

Andy Murray

In 2014, the Scot donned a San Diego Padres baseball jersey for a photoshoot after playing in Davis Cup World Group against the United States in San Diego.

4

Milos Raonic

The Canadian launched the first pitch with his racquet for a Toronto Blue Jays game in his home country.

4

John McEnroe

In 2016, the native New Yorker did his part for the New York Mets ahead of their game against the Yankees.

6

Simona Halep

The Romanian entered unfamiliar territory for a Mets game during the 2017 US Open when she was tasked with the first pitch.