Noel Gibson. Taj Nerlens.

However you want to combine them, this Knicks defensive center tandem is rolling along gloriously with Mitchell Robinson expected out for the season after breaking his foot last month.

The combined numbers of Nerlens Noel and his backup Taj Gibson were outstanding — 18 points, 22 rebounds and four blocks in a 122-112 overtime win over the Pelicans at the Garden on Sunday. Combined Noel-Gibson shot 8 of 10.

Things looked dire when Noel went to the locker room clutching his right wrist after taking a tumble in the first half, but he came back and delivered another sensational block on Brandon Ingram in overtime.

In Dallas on Friday, Noel electrified the team’s bench with a block at the rim on a dunk attempt by Dorian Finney-Smith.

The Knicks are looking shrewder and shrewder after electing not to blow center Andre Drummond out of the water with a contract offer on the buyout market.