NEW YORK, Aug 29 (Reuters) - Five things to watch out for on day two of the U.S. Open on Tuesday.
* Wet weather threatens to put a dampener on the day’s play with a 50 percent chance of rain, according to forecasts. Partly cloudy and cooler-than-average temperatures are expected throughout the tournament, which wraps up on Sept. 10
* All eyes will be on five-times champion Roger Federer to see whether he has recovered from the back injury that kept him out of the Cincinnati Masters earlier this month
* Federer’s first appearance is likely to attract a variety of celebrities, who will walk the tournament’s famed Blue Carpet on their way into the USTA Billie Jean King National Tennis Center
* Canadian Eugenie Bouchard, who is suing the USTA over a locker room fall at the 2015 U.S. Open which left her with a concussion, will play her first round match against Russian Evgeniya Rodina
* The USTA Foundation, which held its annual gala to raise money for youth tennis programs, will announce whether they met the event’s $1.2 million goal, which would be a record haul for the organisation (Reporting by Rory Carroll; Editing by Peter Rutherford)