Los Angeles: Brazilian Gabriel Martinelli scored in his Arsenal debut on Monday as the English Premier League club launched their pre-season tour of the United States with a 3-0 friendly win over the Colorado Rapids. Bukayo Saka and James Olayinka also scored for the Gunners, who cruised to the victory at Dick's Sporting Goods Park in suburban Denver.

Martinelli, the forward signed from Ituano on July 2, was given a surprise start in attack by Unai Emery and sent an early chance wide. Saka, 17, was an energetic presence and put Arsenal up 1-0 in the 13th minute as he collected a through-ball from Eddie Nketiah. Another teenager Olayinka — doubled the score in the 29th, seizing a stray pass from defence and racing in to fire into the top left corner of the net.