 Complete the following phrase:  Lazukin started his season by competing in two ISU Challenger Series events. In mid-September he placed eighth at the 2017 CS Lombardia Trophy and in early October he finished eighth again in 2017 CS Finlandia Trophy. Two weeks later he made his Grand Prix debut at the 2017 Rostelecom Cup where he placed tenth. In December he skated his third Challenger event of the season at the 