""Dustin has a surface crack of his left fibula. Really it's just a small crack which is probably the best news we could have hoped for,"" Hamilton said.
""He will miss the next three to four weeks of football which is obviously a blow to the team.
""Dustin will receive treatment and a key part of his recovery will be resting his leg initially.""
Fletcher went to hospital in Brisbane for x-rays after the match - which was his 300th AFL game - and had CT scans in Melbourne this morning.
There were fears the 34-year-old had broken his fibula following a regulation tackle from behind in the third quarter, which would have seen him miss eight weeks or more.
""One of the positives from the weekend was the performances of young talls Cale Hooker and Tayte Pears,"" Hamilton said.
""With Dustin out for the next month we will be expecting more from these two young key defenders.
""Michael Hurley and Darcy Daniher have also recovered from their injuries and we expect both of them to be available for selection this week.""
