Sampras did not play in the 1990 French Open and again lost in the first round of Wimbledon, this time to Christo van Rensburg. Sampras played seven consecutive weeks during the North American summer hard-court season. He defeated John McEnroe in the quarterfinals of the Canadian Open, but then lost to Chang in the semifinals. He also reached the semifinals of the tournament in Los Angeles, where he lost to No. 2 Stefan Edberg. He did not advance past the quarterfinals in his next three tournaments, losing to Chang, Richey Reneberg, and Goran Ivanišević.