My Magnolia Tree has sprouted

I have an established tree in my garden probably 20- 30 years old. It appears that a new tree has sprouted right next to the trunk, I am not entirely sure it is a new tree from seed or a sucker from the roots. Is it possable to remove the sprout and pot it? If so what care will it need? I plan to give the new tree to my Grandparents and would appreciate any information on this topic.
Many Thanks

 

Can you send a pic??
Liz

 

I hope this helps

 

try to find out the new one roots system and make sure where to connect with old one, and cut from there. new one place in shade area for a couple days. good luck!

 

I think it's a sucker off a main root and will not be movable. A seedling would start out tiny and gradually increase in stem diameter as it grew taller.