Following is a summary of current sports news briefs. Soccer-Serbia counting on coach Stojkovic's World Cup experience, says Mitrovic Serbia have never moved past the group stages at the World Cup since the breakup of Yugoslavia but defender Stefan Mitrovic believes coach Dragan Stojkovic has instilled the right mentality for the team to reach the knockout stages. Serbia were knocked out at the group stage in 2010 and 2018 and they did not qualify in 2014. Last year they appointed Stojkovic, a former Yugoslav international who has played at several World Cups and European Championships. Soccer-After rocky buildup, football ready...