Flirting

How do I get her number?

I joined a volleyball league a few weeks ago and we had our first game today. On the opposing team we played against a girl who I thought was cute. I had a little bit of banter with her we just told her good game but I kind of just left it at that. I do want to get her number and potentially ask her out but I really don't have much experience with women and dating. I'm pretty sure she'll be here next week after our game finishes since she plays after us. If I wanted to get her number and name too how could I go about doing it?
How do I get her number?
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