Newcastle United's Kenedy is consoled by Joselu after missing a penalty.
Rafa Benitez's confident that Kenedy will learn from his mistakes.
The Newcastle United winger could be retrospectively punished with a three-game ban for an off-the-ball kick at Cardiff City's Victor Camarasa on Saturday.
It will not be good (if he's banned), but it's important that he stays focused.
Kenedy also had an injury-time penalty saved by Neil Etheridge at the Cardiff City Stadium, and the game ended goalless.
Cardiff manager Neil Warnock labelled the save as "poetic justice" given than referee Craig Pawson seemingly missed Kenedy's kick at Camarasa.
Benitez can ill-afford to lose loanee Kenedy, already ineligible to play in Sunday's game against Chelsea, for three games.
"It will not be good (if he's banned), but it's important that he stays focused," said United's manager.
Warnock felt that Kenedy should have been dismissed for the kick.