A first half red card spoiled Boston City FC's debut, as the team ultimately fell 3-1 to Cosmos B. Yaw Addow, who was also ejected, scored for Boston, while a pair of own goals from Ronaldo Vieira and Lucas Augusto coupled with a Gonzalo Rodriguez header to produce the final score.
Boston City FC showed no fear against the defending NPSL champions, threatening the Cosmos B net frequently in the first half. Jadilson Vieira's free kick hit the crossbar during the game's opening moments. Soon after, Jhonata Batista had his close-range effort narrowly saved.
The breakthrough came in the 33rd minute when Addow nodded in a Vieira corner kick. It was the first tally in club history for Boston City FC and it came against a team that only allowed seven regular-season goals in 2015.
Boston's historic goalscorer wouldn't get the opportunity to play in the second half as referee Adam Dee sent him to the locker room early. Addow received a second yellow just before the break for a hard foul.
The red card changed the complexion of the game as momentum shifted towards Cosmos B in the second half. In the end, it was consecutive own goals that helped unravel the home team.
In the 66th minute, defender Ronaldo Vieira redirected Gaston Sanchez's shot to bring the game level. Nine minutes later, Augusto headed the ball into his own net, giving the visitors the lead.
Cosmos B grabbed an insurance goal in the 84th minute when substitute Gonzalo Rodriquez headed in a corner.
Boston City FC will return to action on Saturday, May 7 when they host the Seacoast United Phantoms. Kickoff at Malden Catholic School is set for 6 pm.