Walker agreed to terms on a one-year, two-way contract with Minnesota on Thursday.
Walker was demoted to AHL Iowa on Friday.
Walker was promoted from AHL Iowa on Tuesday.
Walker was reassigned to AHL Iowa on Sunday.
Walker was called up by Minnesota on Wednesday, per Jessi Pierce of NHL.com.
Walker was reassigned to AHL Iowa on Wednesday, per CapFriendly.
Walker (shoulder) will be ready for training camp after playing in the Tom Kurvers Prospects Showcase, Dylan Loucks of The Hockey News reports.
Walker suffered a shoulder injury at the IIHF World Championship in Finland on Friday and is returning back home, Michael Russo of The Athletic reports.
Walker was sent down to the AHL on Friday, per Jessi Pierce of NHL.com.
Walker was recalled by the Wild on Wednesday.