Spurs must overturn a 1-0 first-leg deficit when they take on the Dutch club in the return of their last-four tie in Amsterdam, with a final against Liverpool on June 1 the prize for the winners.
The tournament in London, from 17 to 23 June, could offer the five-time former winner a chance of some grass-court action ahead of Wimbledon, should he feel fit enough.
The trio of Lungi Ngidi, Tabraiz Shamsi and JP Duminy have been given the green light after making full recoveries from their respective injuries, Proteas team manager Mohammed Moosajee confirmed on Tuesday.
Established by John F Kennedy in 1963, the Presidential Medal of Freedom is bestowed upon those who have made an "especially meritorious" contribution to US security or national interests, world peace, cultural pursuits or other non-specified endeavors.