The Yankees have lost four straight games, including a sweep at the hands of the Red Sox in Boston, but Mark Teixeira isn't overly concerned. "We're going to have more four-game winning streaks than four-game losing streaks," said Teixeira. "It's the time of year right now that we're just not getting it done." For the fourth time in five seasons, the Yankees are under .500 entering their 20th game of the season.