If Tony engineered these moves for Nadal, which one has proven to be most lethal for his competition?

Switching to left hand. 50% (20 votes)
Top spin. 18% (7 votes)
Clay specialization. 5% (2 votes)
On-court coaching. 5% (2 votes)
Psychological warfare. 15% (6 votes)
Not marrying Xisca. 3% (1 vote)
Not marrying Diana Federer. 0% (0 votes)
Didn't know Tony is an engineer. 5% (2 votes)

Total Votes: 40

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