Thiessen has served as the Mavericks' general manager since the team's inception prior to the 2009-10 season.
The veteran goalie has played professional hockey since the 2012-13 season, including stints with three AHL teams.
Register now to golf with the 2017-18 Mavericks.
Season Ticket Holders can now submit their orders for new Mavericks merchandise with this year's order form, due back Sept. 9.
The Mavericks received the Buck O'Neil Diamond MVP Award from the Greater Kansas City Boys and Girls Clubs.
The pair of second-year ECHL players add youth to the Mavericks' corps of forwards.
The new app features updated team branding with a sleek design.
The Mavericks signed forwards Mark Cooper and Zach Stepan for the 2017-18 season.
Jim Krueger was named the Blue KC Coach With Character for July.
The Mavericks and Americans will have two tune-up games to prepare for the 2017-18 season.
The defenseman rejoins Kansas City after spending the majority of 2016-17 in the AHL.
The defenseman is set to begin his second stint in Kansas City.
Kansas City Mavericks