Sydney FC's Milos Dimitrijevic says young teammate Alex Gersbach will emerge from his one-match suspension stronger, adding there was no need for Adelaide players to converge on the teenager following his red-card tackle.
The Sky Blues were left with 10 men for much of Friday night's 2-1 loss to United after Gersbach was given his marching orders inside 30 minutes for a reckless challenge that shaved the shin of Jimmy Jeggo.
The 18-year-old defender was handed the minimum one-match ban by the A-League match review panel on Monday night.
He will miss Saturday's away match with Wellington.
Dimitrijevic was the first Sydney player to rush in and pull five or six angry United shirts off Gersbach.
"He's a young player, a very good player. It happens and he will come back stronger," Dimitrijevic told AAP.
"Sometimes it's a big foul and at the end you get a red card, but when the referee blows the whistle it's done.
"You don't have to come and chase the player and speak dirty, or something like this."
Dimitrijevic praised his depleted side's resilience for holding Adelaide out for most of the match, during which Filip Holosko even equalised Jeggo's opener, only to eventually go down via an at-the-death penalty.
"With ten men it's never easy to play, especially away," he said.
"But you have to try and keep going, to keep the ball and play forward and try to score.
"We did it. We drew 1-1 but at the end it was a penalty.
"It's hard but sometimes it's like this, and we have to look forward to the next game."