Wells left the training track early last Friday, amid reports of a fresh injury concern, however, the club played down the issue.
But assistant coach Brenton Sanderson confirmed on RSN radio breakfast on Wednesday that Wells will be sidelined with a minor calf issue.
“He’s probably going to miss about 10 days of training, he’s got a slight strain of the soleus which as you know once you hit 30 they tend to pop up every now and again,” Sanderson said.
“He really is the Ferrari in the garage that you just want to bring out when you need to, and he’s just going to add so much class to this side … we’ve just got make sure we get him to Round 1 in really good physical shape and typically players at the back-end of their career need to managed more carefully and he definitely ticks that box.
“We’ve just got make sure we get him to Round 1 fit and raring to go.”
Wells joined the Pies from the Kangaroos as a free agent on a three-year deal worth a reported $1.5 million.