Van Heerden has been without a club since leaving Golden Arrows at the end of last season and is now hoping for a move to the USA.
The 29-year-old, comfortably the best player for Bafana Bafana at the 2008 Africa Cup of Nations, but who has since seen his career take a downward spiral, has opted to try his luck in the MLS with no offers from South Africa or Europe forthcoming.
Even if he does impress the Kansas City coach, former USA international Peter Vermes, Van Heerden may have to wait and see what happens with the MLS Waiver Draft that started on Monday.
It is where the players released by MLS clubs can be picked up by others teams. Kansas City are known to be looking to add some creativity to their midfield and if they don’t find what they are looking for in the Waiver Draft, it would strengthen the South African’s case.
Should he join the club, Van Heerden will be the second South African to feature for the side.
Striker Stephan Armstrong played for what was then known as the Kansas City Wizards between 2002 and 2004. The club were rebranded Sporting Kansas City in November 2010.
Van Heerden was keeping fit with Lierse in Belgium, and is hoping that the time spent with the club will mean he is in shape for his trial in Kansas.