Morkel did not play in any of the first five first class games for the Titans in 2005–06, and also missed the first four Standard Bank Cup one-day games. However, after taking one for 24 from seven overs on one-day debut, where the team won by six wickets, he was retained for the remaining six games. He was responsible for one of ten four-wicket-hauls in the Standard Bank Cup that season, taking four for 41 as the Titans bowled out Cape Cobras for 189 to win by 19 runs and secured a top-two finish in the league stage. He took nine wickets at an average of 18.22 overall, but was dropped for Ethy Mbhalati in the semi-final, which the Titans won by ten wickets. He was then named in the initial eleven for the final, but he was subbed off for his brother Albie when the Titans were at 86 for six; the Titans lost by two wickets after Albie took three for 13. He was then given all six games for the Titans in Pro20, taking four wickets with an economy rate of 7.63 – largely increased by 60 runs in six overs in his last two matches, the last of which, the semi-final, had been shortened to a 7-over affair. He also played two first class matches in the SuperSport Series, contributing six wickets to the Titans' two victories, but was nevertheless dropped for the final three games and the final.