if you look online about a heel injury, day to day probably would be the most accurate description. theres no telling how long it can take to heal..but the common consensus is that only Rest can heal it.
he was at shootout today, and practiced yesterday. apparantly hes getting close. as a fan Id love to see him out there against the heat/knicks..but longterm, winning those games statistically isnt any different than winning against the Hornets or pistons..so, its best to get pierce healthy