Line Drive Danger Raises Questions on Baseball Safety

MLB pitcher Alex Cobb's shocking injury reveals alarming safety issues on the field.
2:11 | 06/16/13

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Transcript for Line Drive Danger Raises Questions on Baseball Safety
And to the unsettling image here at home tonight. That line drive this weekend that hit a major league pitcher in st. Petersburg, florida. Fans at the rays/royals game horrified as they saw and heard tampa bay pitcher alex cobb getting hit with that ball. We learned late today that he's now out of the hospital, reassuring news, but it is reigniting the debate over helmets from the major leagues to the little leagues. Abc's gio benitez with the moment that is difficult to watch. Back leg, expecting impact and he got -- oh, look out! A shot right back at cobb. Reporter: It took just a split second for a ball traveling at 102 miles per hour to hit tampa bay rays pitcher alex cobb right behind the ear. He got -- oh, look out! A shot right back at cobb. Reporter: Tonight, just a day after that shocking injury, cobb is already tweeting. "Want to say thank you to our all-star trainer ron porterfield and the doctors @bayfront hospital. Woke up with only a minor headache today." He's there and really tough moment for everybody. Reporter: He suffered a mild concussion and we've seen injuries like thefore. Last month, a ball fractured the skull of blue jay's starter j.A. Happ. And just last week, brandon McCARTHY HAD A SEIZURE, JUST Months after getting hit in the head with a line drive. The pitcher is a sitting duck. Reporter: Now serious questions for major league baseball. Even players say they need more protection. Whoever comes up with a solution for this is -- they're never going to have to work again in their life. Reporter: And it's not just major leaguers sounding the alarm. So are parents of young players. In 2010, gunner sandberg, then 16, was hit in the head by a line drive and was in a coma for three weeks. He came back to the game and through his support behind plans for a new protective pitching helmet. It's very comfortable. Reporter: Two years later, the mlb hasn't used the design, but the league has considered lining caps with bulletproof kevlar. And the league has not yet approved any head gear for pitchers. Meanwhile, cobb was just released from the hospital this afternoon, he's on a seven-day concussion disabled list. For now, that keeps him off the field, david.

This transcript has been automatically generated and may not be 100% accurate.

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