The everyday grind of the NBA and all of the losing is catching up to Langston Galloway, but he's not willing to give in to the mental fatigue he's experiencing. He's fighting through it.

The undrafted rookie guard out of Saint Joseph's has been one of the few bright spots in an otherwise dark and dreary Knicks season. Galloway has gone from the D-League to ranking second on the Knicks in minutes per game behind Carmelo Anthony.

Galloway swears he's not physically tired despite averaging 40.6 minutes over a stretch of five games in seven nights. In the second half of Monday's loss to the Grizzlies, which was the tail end of a back-to-back, Galloway dove out of bounds to try and save a loose ball and smacked into the announcer's table.

He's giving the Knicks effort, and showing the type of attitude and work ethic that could make him a part of next year's team. But Galloway, who has a partially guaranteed contract for next season, said his biggest issue is learning how to be effective when playing in back-to-backs and four games in five nights.

"I've been talking with the coaches and different people just trying to figure out how to work on these back-to-back games because I've been struggling on the second part of the back-to-backs," Galloway said. "I'm just mentally tired sometimes. I'm just trying to figure out ways to get over that and get better."

The Knicks, who host the Clippers Wednesday night in former coach Mike Woodson's return to the Garden as a Clippers assistant, had the day off Tuesday so Galloway had a chance to exhale and recover.

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Galloway, who is averaging 11.3 points in 31.6 minutes, said he's spending too much time watching video. He'll get home from a game and watch video of what he did well and where he made a mistake. Then he goes to bed and when he wakes up, he throws in video of his opponent and watches that until it's time to leave for the game. He said the coaches are telling him to watch less. "I've been taking care of my body," Galloway said. "It's just the mental fatigue a little bit, just trying to study tape too much. They've been trying to wean me off of it a little bit, just back off, and try to figure out other ways to get better."

Galloway has played in 10 sets of back-to-backs. In the first game, he's averaging 12.1 points, shooting 42.3 percent and committing less than one turnover per game. In the second game, he's scoring 9.8 points, shooting 33.7 percent with 1.7 turnovers.

In the second half of the last three back-to-backs before Monday, Galloway shot 5-for-25 and totaled 13 point and nine turnovers. But he hopes he had a breakthrough against the Grizzlies -- finished with 19 points and five assists in 43 minutes.

"I definitely played better," he said. "I'm just trying to continue to grow as a player as I go through the league."

The Knicks only have two more sets of back-to-backs before the season is over. But Galloway likely will continue to log heavy minutes over the final 11 games as Jose Calderon's season may be over because of an Achilles injury and Alexey Shved is sidelined with bruised ribs.

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"I think his responsibilities have definitely gone up," Derek Fisher said. "Young players always are sharpening their skills and needing to improve upon things and I think that's what Langston's doing."