**The battle to reach the Guinness PRO14 Rainbow Cup final nears its conclusion as six teams play their penultimate match of the competition this weekend.** Leaders Benetton host Connacht and will be hoping to hold off the chasing pack which includes Munster, who entertain Cardiff Blues on Friday, while Glasgow Warriors travel to Dragons a day later with top spot still attainable for the Scots. In the other scheduled fixture for the weekend, Ulster’s clash with Scarlets has been cancelled after an outbreak of Covid-19 cases in the Northern Irish camp. Here are five things you need to know ahead of Round 4.