A girl with a fearsome arm has just made sports history by pitching a shutout in the little league world series. And did I mention she got a hit, too? Now 13-year-old Mo'ne Davis is gracing the cover... See More
A girl with a fearsome arm has just made sports history by pitching a shutout in the little league world series. And did I mention she got a hit, too? Now 13-year-old Mo'ne Davis is gracing the cover of "Sports illustrated." But get this. She's not ready to just settle for baseball either. Here's ABC's John donvan. Reporter: There used to be a putdown you heard a lot more in the old days. "Throws like a girl." Well, Mo'ne Davis is a girl. And, um, well -- First strikeout of the game. Reporter: She throws pretty good. Pitches clocked at 70 miles an hour. Major league pitchers throw upwards of 90 miles per hour. And helping her team the Philadelphia tannee dragons into the little league world series where she's become the first girl to throw a shutout in world series history. It's over. A complete game for Mo'ne Davis. Reporter: Allowing just two hits and striking out eight boys. She hits, too. A run-scoring single in her most recent game. He's going to score. Mo'ne to second. Reporter: Which is not all about her, of course. She is the first to say that. I don't really like all the attention because this year like everything's about me and they don't see the whole picture of my teammates. And without my teammates I don't think we'd be here right now. Reporter: Attention? How about the cover of "Sports illustrated" this week? The first little leaguer ever, boy or girl. Yeah, that counts as some attention. And she says that she saw her Twitter account jump from 2,000 to 15,000 followers in just a couple of days. All of this catching her by surprise because she's only in the eighth grade. I never thought that I'd be a role model at this age. So it was kind of shocking to me when I first came down to watch a game, there was like a crowd of people. I was like kind of nervous, but then I was like excited for it. So I just have to just be myself. Reporter: She's been playing baseball since she was 7, along with a lot of other sports. I was playing football, and I was tackling the boys and I was throwing spirals. That's when the coach came up to me and he was like you have to play baseball. I was an outfielder and then I started pitching at 8 or 9 and I wasn't the best but I threw strikes. Then my arm started getting stronger and stronger. So I started throwing gas. Like my fastball started speeding up. Reporter: She's known for keeping cool out there, which makes her kind of a team leader, one who is already thinking about college way down the road. Uconn maybe to play basketball. Different game. So if you want to watch her throw? Gas, better get out and watch her throw now. Another strikeout. Reporter: For "Nightline" I'm John donvan in Washington.
This transcript has been automatically generated and may not be 100% accurate.