LONDON — Reiss Nelson scored a dramatic 97th-minute winner as Arsenal came from two goals down to beat AFC Bournemouth 3-2 on Saturday to reestablish a five-point lead at the top of the Premier League.
Philip Billing scored the second-fastest goal in the division’s history, after just 9.11 seconds, to give the relegation-threatened visitors a surprise lead at the break before Marcos Senesi converted a 57th-minute corner to extend their…