When play resumed on Day 2, Glamorgan added 137 runs in the morning session, before declaring during the lunch break. They lost Billy Root to the fourth ball of the morning, when the debutant left hander struck a low catch to backward point. Root and Kiran Carlson had added 172 for the fifth wicket, before Carlson who added a further 10 runs to his overnight score, was taken at first slip.

Graham Wagg and Marchant De Lange quickly followed, but Chris Cooke then accelerated to strike a rapid undefeated 70 from 87 balls with a six and 10 fours before calling a halt.

Needing 421 to avoid the follow on, Vasconcelos and Newton set off confidently, with Vasconcelos striking two boundaries in Michael Hogan’s second over, and the 21yr old from Johannesburg was the dominant partner against the five man Glamorgan pace attack.

After scoring 56 and 79 here last summer, the diminutive left hander was dropped at second slip after scoring 21, and was uneasy at times against Labuschagne’s leg spin, but he deserved his fourth first-class century which included 15 boundaries from 189 balls.

Newton was no less effective, as the pair shared the 150-run stand, with Glamorgan, similar to Northants, using seven bowlers. The most effective was Labuschagne, who was treated with respect and ended his opening spell with the commendable figures of 11-1-29-0.

With the pitch as true as it was when the first ball was bowled on Thursday morning, it will be interesting to see what happens on the final two days. Northants could bat on and put the pitch into perspective or declare if and when they reach maximum batting points.

The latter would be a popular decision with the spectators, especially if they witness a run chase on the final day, otherwise there will be little to interest them if the game meanders to a draw.