"If I do play I know I will be very nervous and it will be even more exciting than making my debut."
South Africa have yet to announce their plans, but 20-year-old De Villiers must think that Test cricket is a curious game.
He made his debut, against England, three weeks ago as an opener. Then, when Tsolekile was axed, the youngster moved to No7 and took over as keeper.
Now, one option would be to use De Villiers as a middle-order batsman with Boucher regaining the gloves.
However, he could even return to the top of the order with the out-of-form Herschelle Gibbs either moving down or being left out altogether.
Whatever the decision, though, the wicket England will want most is that of Jacques Kallis. The outstanding batsman has stayed in the crease for nearly 22 hours in the series so far and is averaging close to 75.