Cape Town - South Africa's Quinton de Kock will keep the wicketkeeping gloves for the second Test against Sri Lanka starting in Colombo on Thursday.De Kock took over the gloves from AB de Villiers in the first Test due to the latter's strained hamstring.De Villiers has recovered from the hamstring niggle but he conceded that long-term back issues could force him to give up wicketkeeping in Tests, as he has done in the limited-overs formats."In the last game I had that hammy issue. That's sort of recovered, but my back's always been an issue," De Villiers told ESPNcricinfo's Firdose Moonda. "It's difficult to take on the gloves, especially keeping in mind that I haven't kept for six or seven months now. So, with that injury and a two-day turnaround after the day off yesterday (Monday), for me to get into shape with my gloves on would be a little bit unfair with my back." De Villies on Tuesday told SuperSport TV that he still sees himself as a wicketkeeper batsman but in order for him to do that he must be 100% fit at all times.De Kock seemed to thrive in his role in the first Test. He scored a maiden Test hundred in Galle and apart from one simple dropped catch on Day 5, performed adequately behind the stumps.