. >>> tennis karma rhea sharpova may be taking a page out of peyton manning playbook. she hasn't said what she will discuss at a press conference but a recent string of injuries has fueled retirement speculation. she dropped out of a championship last week with an arm injury and out of last month's open with a shoulder injury. she has five majors. into the record books this weekend. >> 3-2-1! >> she doesn't look tired. suzy swinehart logged 73.3 miles on a treadmill and beats the previous guinness book record of 53.4 miles. what is next for the 43-year-old mom? >> rest. put my feet up and drink a couple of beers and relax with my kids and enjoy hanging out with them on the couch. >> congratulations. guinness has yet to make it official, which could take up to six months. >>> lady gaga continued a whirlwind tour this weekend by taking a plunge. she dipped into the michigan lake on sunday. she ran into the water with her fiance taylor kinney along with other people in an effort to raise funds for the special olympics. >>> coming up after your local news on "cbs this morn