While purely subjective and largely circumstancial...if Roddick doesn't hurt his ankle in Queens, I feel he also goes on to lose to Murray there which in turn cancels out the mental equilibrium that Roddick brought into today's match and as a result sees Murray emerge victorious this afternoon. Furthermore, even if Roddick wins Queens...he then deals with the pressure/expectations of having to both repeat his excellent results and having to beat Murray back-to-back tourney's which is arguably even more difficult feat to accomplish than beating him only once (since Murray's loss the week prior in Queen's likely results in a change of tactics on Murray's end) so again even if Roddick wins Queen's I still see Murray comming out even hungrier and with a different game plan to where he's still wins today's match against Roddick...In short do you feel Roddick's turning his ankle in Queens was actually beneficial overall in terms of him emerging victorious over Murray in today's match because it retained the mental equilibrium between the two rather than tipping it toward one or the other (which in both cases I see Murray responding to that equilibrium shift by emerging victorious)?