Marbella – Oil, vinegar or brine are suitable for preserving food. Dominic Thiem used liquid wax for his injured wrist. Austria’s best tennis player had to take a break for nine months. During his rehab, he left no stone unturned to avoid surgery, including wax baths. Thiem made his comeback at the Challenger tournament in Marbella on Tuesday. Against Argentinian Pedro Cachin in Spain he was far from his normal form for long stretches, losing 3:6, 4:6 after 1:21 hours.