Son was on target as we fought back from 2-0 down to level in the second half.
But we then lost Kieran Trippier on 73 minutes and with three substitutes on, we were down to 10 men.
Momentum shifted back in Wycombe's favour and Garry Thompson headed them into a 3-2 lead with seven minutes left on the clock.
Below: Sonny speaks to Spurs TV
"I knew we wouldn’t give up because we had five minutes where we could score," said Sonny. "That was my feeling. I wasn’t thinking about losing this game.