Jelena Jankovic spent a day of service contributing to a cause earlier this month.

Jankovic visited Reebok Headquarters in Canton, Mass. on April 11 to participate in a fundraiser to benefit the Avon Walk for Breast Cancer.

Reebok employees, including new Reebok President Uli Becker, tried out their serving skills against Jankovic in a practice cage set up indoors with a speedometer.

A donation was made to Avon for every serve made and prizes were given for the fastest speeds (one Reebok exec clocked in the day's fastest serve at 121 mph).

The fifth-ranked Serbian provided serving tips to all participating employees.



















(via tennisweek.com)

Jankovic Serves For Charity