Marcelo Mayer June 2, 2023 11:01 am Top prospect Marcelo Mayer on a fast track to Boston? John Tomase profiles Red Sox top prospect Marcelo Mayer, who is the youngest player to arrive at AA Portland in 15 years. How soon will it be before we see him at Fenway? Celtics Videos 1:38 O'Neill placed in concussion protocol after collision with Devers 0:36 Emotional Trevor Story talks about season-ending injury 0:40 Breslow: Trevor Story to undergo season-ending shoulder surgery 1:21 Cora: Wakefield a World Series champion and a ‘champion of life' 1:01 Cora: 2004 Red Sox “changed the perception of this franchise”