Close to a decade ago, brothers Aviv and Matteo Shapira co-founded Replay, a company that created a video format for 360-degree replays — the sorts of replays that have become part and parcel of major sports broadcasts. Replay caught the attention of Intel, which acquired the company in 2016 for a reported $175 million, and led Aviv and Matteo to a chance meeting with Rubi Liani, the founder of Israeli’s official drone racing league (FRIL). Liani turned the brothers on to drone racing and plante...