The DP World Tour, formerly the European Tour, has responded to a letter from sixteen LIV Golf series players who are threatening legal action after they were sanctioned for participating in the first event of the controversial Saudi-backed series in London.The DP World Tour, formerly the European Tour, has responded to a letter from sixteen LIV Golf series players who are threatening legal action after they were sanctioned for participating in the first event of the controversial Saudi-backed series in London.