Gary Wilson reeled off five frames in succession to gain the upper hand against Ali Carter following the opening session of their World Championship quarter-final in Sheffield.

A total clearance of 135 had helped Carter race into a 3-0 lead and extended his streak of frames won to nine, the two-time Crucible runner-up having taken six in a row to beat Zhou Yuelong 13-9 on Monday.

However, Wilson stopped the rot with a break of 109 in the final frame before the mid-session interval and carried on where he left off after the break with contributions of 86, 134 and 55 to move 5-3 ahead.

The same quality was largely absent in the day's second quarter-final, with Kyren Wilson managing a highest break of just 46 in the first eight frames against David Gilbert.

Wilson, who had produced centuries in the last two frames to beat Barry Hawkins 13-11 in round two, somehow scrapped his way into a 4-3 lead before Gilbert, who had earlier made breaks of 68 and 60, saved the best until last with a 109 clearance to level at 4-4.

Both matches resume at 7pm on Tuesday before playing to a finish on Wednesday.