Cristian Arango will be getting treated to dinner by his Los Angeles FC team-mate Kwadwo Opoku after the latter's winner against D.C. United.

Opoku – commonly known as Mahala – came off the bench to net his sixth MLS goal of the season on Tuesday to see off Wayne Rooney's team 1-0 in California.

That brought up a seventh straight league win for LAFC, who are well on course to win The Supporters' Shield.

Mahala's goal, the 15th scored by an LAFC substitute this season, came just five minutes after he entered the fray at Banc of California Stadium, with the hosts' leading scorer Arango turning provider.

Arango could have gone for goal himself after latching onto Carlos Vela's throughball, but instead squared for Mahala, who took a touch to steady himself before slotting into an open net.

When asked about Arango's assist, Mahala told LAFC's official broadcaster KCOP 13: "That's a great one, it's a team effort, as long as the team gets the three points, that's the most important thing. I need to buy him dinner!"

As they close in on the playoffs, LAFC look well set to go on and break the MLS regular-season points record, set by the New England Revolution last year.

"For me this is the best team I've played for," said Ilie Sanchez, who had spent the previous five seasons competing at the top end of MLS with Sporting Kansas City.

"The quality that we have in our squad is so broad. Every player that is out on the field is performing, doing a great job and the coaching staff are managing the situation perfectly. We need to improve more and more towards the playoffs."