 Complete the following phrase:  In January 2019, Ding participated in the Masters, beating Jack Lisowski 61 in the first round and Luca Brecel 65 in the quarter-final. He lost to Ronnie OSullivan 63 in the semi-final. At the 2019 German Masters, Ding defeated Fergal OBrien 53 in the last 32 and Xiao Guodong 54 in the last 16. However, he lost to Duane Jones 53 in the quarter-final. At the 