
New York Red Bulls midfielder Tim Cahill (right) pushes D.C. United midfielder Branko Boskovic during the first half of an MLS Eastern Conference semifinal playoff soccer match on Nov. 8, 2012, in Harrison, N.J. (Associated Press)

D.C. United midfielder Perry Kitchen (23) goes up for a header against New York Red Bulls defender Tim Cahill (17) during the first half of the Eastern Conference semifinals playoff match at RFK Stadium, Washington, D.C., Saturday, Nov. 3, 2012. (Craig Bisacre/The Washington Times)

Tottenham Hotspur's Michael Dawson (20) battles New York Red Bulls' Tim Cahill (17) for a header in the first half during a friendly soccer match at Red Bull Arena in Harrison, N.J., Tuesday, July 31, 2012. (AP Photo/Rich Schultz)

Tottenham Hotspur's Michael Dawson (20) battles New York Red Bulls' Tim Cahill (17) for a header in the first half during a friendly soccer match at Red Bull Arena in Harrison, N.J., Tuesday, July 31, 2012. (AP Photo/Rich Schultz)