The German was sacked barely a year on from winning the Champions League with the Blues, with Potter coming in to replace him
Former Man Utd attacker Cristiano Ronaldo has been told that he may "struggle" in Saudi Arabia amid reports linking him with a £173m move to Al-Nassr.
Substitute Romelu Lukaku hit a post for Belgium in the second half, but they needed to win to progress, while the point was enough for Croatia, who finished second in Group F behind winners Morocco. Belgium, number two in FIFA's world rankings, had failed to impress in their opening two group games - a 1-0 win against Canada and a 2-0 defeat to Morocco - and their latest setback could signal the end of an era for Roberto Martinez's 'golden generation'. Ivan Perisic went close to giving Croatia a dream start when he collected Luka Modric's pass and rifled a shot inches wide inside the opening 10 seconds.