Hardy notched 11 points (4-10 FG, 3-7 3Pt) and two assists in 13 minutes during Wednesday's 119-99 victory over Chicago.
Hardy and the Mavericks agreed to a three-year, $18 million contract extension Monday, Shams Charania of ESPN reports.
Hardy isn't in the starting lineup for Thursday's preseason game against the Bucks.
Hardy is not in the starting lineup for Thursday's preseason game against the Jazz, Grant Afseth of DallasHoopsJournal.com reports.
Hardy closed with 13 points (4-8 FG, 1-3 3Pt, 4-4 FT), three rebounds and one assist over 11 minutes during Thursday's 107-89 loss to the Celtics in Game 1 of the NBA Finals.
Hardy posted 13 points (5-8 FG, 3-4 3Pt) and one rebound across 12 minutes during Tuesday's 105-100 loss to Minnesota in Game 4 of the Western Conference Finals.
Hardy will run with the second unit for Sunday's Game 1 against the Clippers, Law Murray of The Athletic reports.
Hardy will start at point guard in Sunday's regular-season finale in Oklahoma City.
Hardy racked up 25 points (9-19 FG, 2-6 3Pt, 5-6 FT), seven rebounds, two assists and one steal across 29 minutes during Friday's 107-89 loss to the Pistons.
Hardy ended Sunday's 125-107 win over the Rockets with eight points (3-7 FG, 2-5 3Pt), two rebounds and one assist across 16 minutes.