(Recasts) RIO DE JANEIRO, Jan 14 (Reuters) - Former Netherlands and AC Milan midfielder Clarence Seedorf said on Tuesday he would become the Serie A club's new coach after announcing an end to his illustrious playing career. He left Milan for Brazil's Botafogo in 2012. "This isn't a goodbye, we'll meet again," he said at Botafogo's stadium. "All the experience I have gained in this year and a half at Botafogo is going to help me in my next venture, which will be as coach of Milan." Seedorf will replace Massimiliano Allegri who was fired by Milan on Monday following a dismal run of results for the seven-times European champions. More...