Halep and Bertens have similar playing styles – punchy serves backed up by power-hitting from the baseline, no obvious chinks, rare artistic flourishes – but Halep, yesterday anyway, does everything with just a fraction more consistency.
A good serve is backed up by powerful, consistent groundstrokes and her movement is superior to that of the taller Sharapova.
But rallies and marches and demonstrations could remind those who've forgotten of what happened, serve to back up the members of Congress who want to do something about guns, and signal that there are numbers and votes on the other side as well.
The outgoing chief of the defence staff, Adm Luigi Binelli Mantelli - Italy's top serving officer - backed up that view this week, noting that the best tools available for the moment to deal with the Libya crisis were "diplomacy and the UN Security Council".
It's now paying money into an account that will serve to back up Chrysler and General Motors warranties if either goes into bankruptcy or out of business.
There are many such anecdotes about music in the Third Reich, and they serve to back up Thomas Mann's controversial but not easily refuted contention that in Nazi Germany the greatest art was implicated in the greatest evil.
We lack the necessary data to directly estimate the conduct parameter, so that the coefficient of HHI can only serve to back up the intuition that higher hospital concentration leads to higher prices.
Gulbis, though, comes straight back to earn 30-all and gathers himself for a thundering serve down the middle, backed up by clean-up forehand - twice.
What's more, the City Paper's massive filing contains an astounding amount of material that serves to back up what was originally reported in McKenna's article.
The second feature of the City Paper's filing was an extensive collection of supporting material, serving to back up McKenna's original reporting on matters that both pertain to the suit's specifics as well as the total body of work in the article itself.
