CREATE TABLE table_21246 ("Game" FLOAT, "Date" TEXT, "Team" TEXT, "Score" TEXT, "High points" TEXT, "High rebounds" TEXT, "High assists" TEXT, "Location Attendance" TEXT, "Record" TEXT)

What opposing team was playing when sebastian telfair (7) had the highest assists?
SELECT "Team" FROM table_21246 WHERE "High assists" = 'Sebastian Telfair (7)'
SELECT "Team" FROM "table_21246" WHERE "High assists" = 'Sebastian Telfair (7)'