SAN ANTONIO -- Tim Duncan will miss Game 4 of the Spurs' playoff series against the SuperSonics because of the death of his father, leaving the team without both of its formidable 7-footers.David Robinson will not be in uniform for the third straight playoff game after straining his lower back late in the regular season.Duncan left Monday's practice early after hearing that his father, William, had been hospitalized after a long illness. The elder Duncan died later that day in North Carolina.San Antonio coach Gregg Popovich said Tuesday that his star forward "will rejoin the team as soon as he...