On the eve of the Proteas’ departure to New Zealand for a two-Test tour, star batsman Keegan Petersen was ruled out due to Covid-19 protocols. Sarel Erwee, who has been in terrific form for South Africa A and Dolphins, now looks set to get a long-awaited opportunity in the Proteas Test team. “Sarel Erwee has been our backup batter for quite some time. He’s had a few series now where he’s been carrying the drinks, and he’s been brilliant off the field. So I’d like to think he’s the guy who comes in,” Test captain Dean Elgar commented prior to the team’s departure. In the three-match series agai…