"He would be hoping for a second innings and he gets an opportunity to bat and he needs to score to save his Test place. It has come to that situation where the selectors will be thinking hard if Rohit Sharma deserves a test place," Manjrekar said.
"What goes against him is the way he gets out. Even today, at a crucial juncture trying to hit a bowler for a six and getting out. His game is built on lofted shots. The sixes and big shots are part of his DNA, his basic game.
Rohit today got out while looking for a big shot and was caught by Imran Tahir at the long-on off Dane Piedt.
Majrekar was also impressed with off-spinner Piedt and said South Africa made a mistake by not playing the youngster earlier in the four-Test series.
25-year-old Piedt, who is playing only his second Test, took four wickets on the opening day of the fourth and final Test and Manjrekar said he is a good find for South Africa.
"I think the Kotla pitch has been the best in the series. There is not as much turn as Mohali and Nagpur and there is some help for the fast bowlers too which was evident with the use of short balls by Morne Morkel," he said.
"The highlight of day-one was the way the visitors bowled. Kyle Abbott bowled with a lot of discipline. He bowled a strict line outside the off-stump."
He was disappointed with India's collapse but praised Ajinkya Rahane for anchoring the Indian innings with an unbeaten 89.
"Ajinkya Rahane was the star for India and he controlled the innings. If he goes on to score a century, it will be the first individual hundred of this series.
