But with Hartenstein, the Knicks were limited to offering a max of four years, $72.5 million. The Thunder gave up three years, $87 million. The reason for New York’s restrictions was it originally signed Hartenstein to a two-year deal, so operated with only his partial Bird Rights. Oklahoma City signed him using straight cap space.

Twenty-one games into his tenure with Oklahoma City, Isaiah has adapted. Still, playing at Madison Square Garden for the first time since Hartenstein signed a three-year deal, $87 million contract with the Thunder, the venue Isaiah called home for two seasons, is unique.

Oklahoma City Thunder center Isaiah Hartenstein will be re-evaluated in approximately one week after he suffered a left soleus strain against the Philadelphia 76ers Tuesday night,

Oklahoma City Thunder center Isaiah Hartenstein is out at least a week with a calf issue and will be re-evaluated after that.

It was a happy return to Manhattan for Isaiah Hartenstein, whose Oklahoma City Thunder dismantled the Knicks by a 126-101 final on Friday night at Madison Square Garden. The Western Conference-leading Thunder earned a two-game sweep of the Knicks after previously prevailing in a 117-107 home win last weekend.