Boston Celtics rookie Kelly Olynyk said Friday that his plantar fasciitis is improving and he's working with team doctors to ensure he's on the floor for the start of training camp next month. Olynyk joined forces with the Celtics Shamrock Foundation to host 30 children from the MSPCC for their Friday Fun Field Trip Day at Canobie Lake Park where Olynyk rode the rides (getting soaked on the flume and Boston Tea Party with team co-owner Steve Pagliuca) and toured the park. Before the event he downplayed the foot ailment that prevented him from working out with the Canadian national team this summer and suggested keeping him out of action was merely precautionary. "[The plantar fasciitis] is improving" said Olynyk. "I just have to keep working to get it better every day doing things I can do. The [team] doctors here have been great. I just need to keep working to be ready for season." Olynyk said the plantar fasciitis had been lingering and likely flared after the Orlando Summer League. He still spent a week around the Canadian national team hoping to bond with a young core it has put together.