"The injury to his knee may hurt the ability of the athlete to perform at his best." This sentence is grammatically correct and can be used in written English.
It means that the injury may affect or lessen the athlete's ability to perform well. Example: "The lack of proper nutrition can hurt the ability of a student to concentrate in class."
That is a relatively low rating from Best, and could hurt the ability of Conseco to sell new policies.
The company warned that large-scale exports that raise domestic gas prices would hurt the ability of energy-intensive manufacturers to compete with foreign firms.
Some, like anti-anxiety drugs, can dull alertness and slow reaction time; others, like stimulants, can encourage risk-taking and hurt the ability to judge distances.
Even a partial shutdown of the national railroad could hurt the ability of those regional railroads to keep serving 300,000 commuters a day.
That will hurt the ability of regional banks to win the cross-border business of small and medium-sized firms.Technology will also help big international banks, albeit in a different way.
Last winter the Department of Homeland Security warned that NBC's pursuit of a Maryland college professor on genocide charges could hurt the ability of law enforcement officials to enact actual, as opposed to televised, justice.
He felt strongly that patent trolls were hurting the ability of small businesses like his to grow and prosper.
The combination of strengthened foreign naval patrols, an increase in prosecutions and some progress toward a stable Somali government appears to be hurting the ability of the pirates to operate.
"Democrats should be more concerned with the unanimous opinion of House Republicans and a vast majority of Americans who believe Obamacare is raising health care costs and hurting the ability of small businesses to hire," he said.
Nicola Dandridge, chief executive of Universities UK, which lobbies on behalf of higher education, said her organisation was concerned that the government's immigration policy was hurting the ability of British universities to attract students and staff from overseas.
