BSS, Chittagong :Left handed pacer Mustafizur Rahman one again proved his mettle as he grabbed four wickets in his debut Test against visiting South Africa during the first Test at the Zahur Ahmed Chowdhury Stadium here.The 19-year old boy hailed for Satkhira got Hashim Amla as his debut wicket when the Protease batter pushed away from body with firm hands and was caught behind.Then he took the wicket of JP Duminy in the next ball after dismissing the Protease skipper.Bangladeshi fans jumped out of their seats to acknowledge Mustafizur’s awesome performance as he captured the third wicket of Quinton de Kock who found his off-stump knocked out by a full, low delivery to take three wickets in four balls.Temba Bavuma was the last man out for South Africa when he became Mustafizur’s fourth victim of the day.He completed his bowling spell with 17.4-37-4.Earlier, he came into a limelight by taking five wickets haul in his debut ODI appearance in home series against India.