Salvador: Costa Rica issued a plea to the referee on Friday to keep an eye on Arjen Robben's diving. (Complete FIFA World Cup 2014 coverage)
The Netherlands forward earned an injury-time penalty in the second round of the World Cup, giving his team a 2-1 win over Mexico. Costa Rica coach Jorge Luis Pinto is worried about more of the same when his team faces the Dutch in the quarterfinals on Saturday in Salvador.
"FIFA and referees, please watch out. That could be a crucial factor in the match," Pinto said. "This is very important, Robben's diving. ... That makes us worry a lot."