Teenager Alysson delivers derby winner for Gremio

RIO DE JANEIRO, Sept. 21 (Xinhua) -- Teenager Alysson struck a second-half winner as Gremio twice recovered from a goal down to clinch a 3-2 away win over Porto Alegre rivals Internacional in Brazil's Serie A on Sunday.

Alan Patrick put the hosts ahead from the penalty spot before Carlos Vinicius equalized with a glancing header.

Patrick converted another spot-kick but the visitors again responded through