article: Tomas Berdych advanced to the semi-finals of the Monte Carlo Masters for the third time on Friday after opponent Milos Raonic retired with a foot injury. Raonic called a trainer after dropping serve for the second time to trail 5-2 in the first. Following a short discussion with the doctor, who had a close look at his strapped right foot, the big-serving Canadian went to see Berdych on the other side of the court to inform him of his decision to give up. Tomas Berdych advanced to the semi-finals of the Monte Carlo Masters following Milos Raonic's injury . Raonic had to retire from his quarter-final showdown with Berdych due to a troublesome foot injury . Berdych, who has yet to lose a set this week, will face either Grigor Dimitrov or Gael Monfils in the semi-finals of the clay-court Masters tournament. Eight-time champion Rafael Nadal will play David Ferrer, and top-ranked Novak Djokovic will face Marin Cilic. Berdych shakes hands with Raonic following the Canadian's decision to retire from the encounter .
highlights: Milos Raonic had to pull out of tournament after sustaining foot injury .
  Tomas Berdych will face Grigor Dimitrov or Gael Monfils in next round .
  Berdych is yet to lose a set this week following Raonic's injury .
prediction: Tomas Berdych 
   for 
   third time on 
   after 
   retired with a foot 
   in 
   Canadian 
   Berdych advanced to the semi - finals of the Monte Carlo Masters following Milos Raonic' s injury . Raonic had to retire from his quarter - final 
   will 
  .