CREATE TABLE "doubles_champion_16" (
  "date" text,
  "tournament" text,
  "surface" text,
  "partner" text,
  "opponents_in_final" text,
  "score" text
);

Question: What is the name of the partner who played in the final against Lucas Arnold Ker Martín García?
SQL: SELECT "partner" FROM "doubles_champion_16" WHERE "opponents_in_final"='lucas arnold ker martín garcía';