The Spurs extended their winning streak to 18, including eight consecutive play-off victories, beating the Clippers 102-99 and take the Conference Semi Final series 4-0.
They will face the Kevin Durant-led Oklahoma City, who secured a 4-1 series win over the Los Angeles Lakers with 106-90 victory today.
Mills and Brown will have to wait for Game 1 of the Conference Finals with the Spurs to host series-opener on Monday (AEST).