Serena Williams of the United States prepares to hit a backhand return against Monica Niculescu of Romania during the BNP Paribas Open at Indian Wells Tennis Garden on March 13, 2015 in Indian Wells, CA. (Photo by Mel Blackmon /CBS)
BNP Paribas Open
Monica Niculescu of Romania returns a shot against Serena Williams of the United States during the BNP Paribas Open at Indian Wells Tennis Garden on March 13, 2015 in Indian Wells, CA. (Photo by Mel Blackmon /CBS)
BNP Paribas Open - Day 5
Serena Williams hits a forehand during her 7-5, 7-5 win over Monica Niculescu at the BNP Parisbas Open at the Indian Wells Tennis Garden on Friday night (credit: Harry How/Getty Images)
BNP Paribas Open
Monica Niculescu of Romania reacts in her match against
Serena Williams of the United States during the BNP Paribas Open at Indian Wells Tennis Garden on March 13, 2015 in Indian Wells, CA. (Photo by Mel Blackmon /CBS)
BNP Paribas Open
Serena Williams of the United States reacts in her match against Monica Niculescu of Romania during the BNP Paribas Open at Indian Wells Tennis Garden on March 13, 2015 in Indian Wells, CA. (Photo by Mel Blackmon /CBS)
BNP Paribas Open
Serena Williams of the United States hits a forehand return against Monica Niculescu of Romania during the BNP Paribas Open at Indian Wells Tennis Garden on March 13, 2015 in Indian Wells, CA. (Photo by Mel Blackmon /CBS)
BNP Paribas Open
Monica Niculescu of Romania returns a shot against Serena Williams of the United States during the BNP Paribas Open at Indian Wells Tennis Garden on March 13, 2015 in Indian Wells, CA. (Photo by Mel Blackmon /CBS)
BNP Paribas Open
Serena Williams of the United States returns a shot against Monica Niculescu of Romania during the BNP Paribas Open at Indian Wells Tennis Garden on March 13, 2015 in Indian Wells, CA. (Photo by Mel Blackmon /CBS)
BNP Paribas Open
Serena Williams of the United States prepares to hit a backhand return against Monica Niculescu of Romania during the BNP Paribas Open at Indian Wells Tennis Garden on March 13, 2015 in Indian Wells, CA. (Photo by Mel Blackmon /CBS)
BNP Paribas Open
Monica Niculescu of Romania returns a shot against Serena Williams of the United States during the BNP Paribas Open at Indian Wells Tennis Garden on March 13, 2015 in Indian Wells, CA. (Photo by Mel Blackmon /CBS)
BNP Paribas Open
Serena Williams of the United States returns a shot against Monica Niculescu of Romania during the BNP Paribas Open at Indian Wells Tennis Garden on March 13, 2015 in Indian Wells, CA. (Photo by Mel Blackmon /CBS)
BNP Paribas Open
Serena Williams of the United States serves in her match against Monica Niculescu of Romania during the BNP Paribas Open at Indian Wells Tennis Garden on March 13, 2015 in Indian Wells, CA. (Photo by Mel Blackmon /CBS)
BNP Paribas Open
Serena Williams of the United States reacts in her match against Monica Niculescu of Romania during the BNP Paribas Open at Indian Wells Tennis Garden on March 13, 2015 in Indian Wells, CA. (Photo by Mel Blackmon /CBS)
BNP Paribas Open
Serena Williams of the United States reacts in her match against Monica Niculescu of Romania during the BNP Paribas Open at Indian Wells Tennis Garden on March 13, 2015 in Indian Wells, CA. (Photo by Mel Blackmon /CBS)
BNP Paribas Open
Serena Williams of the United States returns a shot against Monica Niculescu of Romania during the BNP Paribas Open at Indian Wells Tennis Garden on March 13, 2015 in Indian Wells, CA. (Photo by Mel Blackmon /CBS)
BNP Paribas Open
Serena Williams of the United States prepares to hit a backhand return against Monica Niculescu of Romania during the BNP Paribas Open at Indian Wells Tennis Garden on March 13, 2015 in Indian Wells, CA. (Photo by Mel Blackmon /CBS)
