He started playing the game for various clubs and teams at young age. He joined his high school Killarney Secondary and used to play ice hockey while studying at high school. He was playing well there when he was diagnosed with a disease called Scheuermann's disease. The disease affected the bones and nerves of Milan and could have resulted in a permanent curved back for him. But he was cured of the disease and later on did not suffer any problem because of the disease. However he had to leave his ice hockey career and the sport for some time because of the disease and returned later on to play the sport.

Milan is married to his present wife and his long time past girlfriend Brittany Carnegie whom he married in the year 2012. The couple is said to be sharing strong bond together and has been staying together since then. They gave birth to their first baby, a daughter named Valentina and later on the couple completed their family by giving birth to another daughter with the name Nikolina.

According to his biography, Milan started playing ice hockey because of the inspiration of his uncle when he was studying at his high school. However there was a break from the sport in his career due to a disease and he later on resumed his professional career in 2004 when he signed a contract with the team Coquitlam Express. He played on many games with the team and performed well there. He played many minor leagues there and with some other teams and gained some popularity there because of his performance.

He however rose to fame when he signed a contract with the team Boston Bruins in the year 2007 and made his NHL debut with the team. He went on to play for the team till 2015 and became much popular there. He won many championships and trophies for his team. He was later traded to Los Angeles Kings in the year 2015 and has been playing them ever since. He has won many awards and appreciations in the past including the prestigious President's Cup, Stafford Smythe Memorial Trophy, NHL YoungStars Game, Stanley Cup champion and many others.

Milan has earned a lot of wealth playing Ice hockey for his professional teams and his estimated net worth is around $22.5 million and this is projected to increase in the future as well. He is also acting on social media sites like Twitter and has got over 72k followers there.