Canadian midfielder Ismael Kone, who had words with coach Jesse Marsch after being substituted in Friday's 3-0 win over Romania, says his outburst was prompted by "a bit of disappointment, a bit of frustration."

But he acknowledged such a display of pique should not have happened.

"I felt like as a man, as a player playing on a team, this is something I shouldn't do right in that moment, whatever my reason may be," he told a news conference in Swansea, Wales. "I spoke with my teammates, I spoke with the coaching staff also. They know how much I appreciate them, and this is something that was just out of frustration.

"I mentioned to them that it will never happen again … I care about this jersey and this team more than anything."

Marsch chose to have the 23-year-old Kone accompany him a

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