CREATE TABLE table_14899 ("Season" TEXT, "Tier" TEXT, "League" TEXT, "Pos." TEXT, "Postseason" TEXT, "Cup competitions" TEXT, "European competitions" TEXT)

Name the position for european competitions of eurocup regular season
SELECT "Pos." FROM table_14899 WHERE "European competitions" = 'eurocup regular season'
SELECT "Pos." FROM "table_14899" WHERE "European competitions" = 'eurocup regular season'