Facebook Live, unfortunately, is still in beta due to Facebook not being developer friendly (to put it mildly). It will likely never come out of beta since they are unwilling to allow new, mobile, apps to use their service, other than their own, for Facebook Live.
More information, see link: ScoreCam: Facebook Live
It can be complicated so be sure to do lots of testing before you want to record a match. Here is some documentation to help you get going on live streaming: ScoreCam: Live StreamingTags: facebook live, live streaming