The Portland Timbers are investigating LAFC player Adama Diomande's claim on social media that he was called a racial slur during the teams' U.S. Open Cup game Wednesday in Portland.

Diomande posted his allegation Thursday on Instagram, writing, in part: "Today was the first time in my professional career that I was called the «N» word on the field. They will say sorry to me after the game and please let it go, but If I don’t say anything racism will just continue to grow."

In response to the allegations, the Timbers released the following statement (via ESPN FC):

"The club is aware of the accusations posted on Instagram following Wednesday night's U.S. Open Cup game and is in direct communication with LAFC management, league officials and internal staff to gather more information. At this time, we are awaiting more details as we actively continue to investigate the matter. The club will provide further information when it becomes available.

"The Timbers and those associated with the club do not tolerate discriminatory, disrespectful or offensive behavior of any kind, under any circumstances, and it does not reflect the values of the club or the community which it represents."

Diomande, who has scored nine goals in seven games for LAFC, didn't identify publicly the individual or individuals he says made the remark but closed his post with that hashtag #saynotoracism and, "The player have been reported."

The accusation comes in the context that the Timbers are protesting LAFC's 3-2 win, claiming the the Los Angeles side broke tournament rules, as set by the U.S. Olympic Committee, by using six foreign-born players, one more than is allowed on an 18-man roster.

Diomande, a native of Norway, was involve in multiple heated exchanges with Timbers players late in the match after entering it in the 68th minute.