 Complete the following phrase:  1979 saw Reardon regain his Pot Black title by defeating Mountjoy 21 in the final. It was Reardons first win since he won the inaugural event in 1969, although he was runner up in 1970, 1972 and 1980. At the 1979 World Championship, he lost to Dennis Taylor in the quarter-final, and was eliminated by David Taylor at the same stage in 