First-round opponent a tall order for Serena Williams

If Serena Williams thought the pressure that surrounded her like a thick, toxic fog while she sought to complete a historic calendar-year Grand Slam last year at Flushing Meadows has dissipated for good, she might be in for a surprise when she launches her campaign at this year's US Open on Tuesday in Arthur Ashe Stadium. The first hurdle in Williams' path is a tall one: 29-year-old left-hander Ekaterina Makarova. Once again, there is enough at stake to give even the 22-time Grand Slam singles champion palpitations.