Opener's Rebid after 1D-1S 19

Opener's Rebid after 1D-1S 19

Question:

You are South. Matchpoints. 

You hold: 

A1072
32
KQ107
A32

What is your next call on the below auction:

  West    North    East    South  
 PassPass1diamonds icon
Pass1spades iconPass?

 


Answer: