The 18-year-old Tyler arrived in Israel on a wave of publicity in August after deciding to skip his senior year at San Diego High School to gain professional experience.
However, his time in Israel was fraught with problems, and he left five weeks before the end of the season.
"Due to personal matters, Jeremy chose to leave the team on his own will on March 18 and return home to San Diego," Maccabi Haifa owner Jeffery Rosen said in a statement. "We wish Jeremy all the best."
In the 10 games Tyler played for Haifa, the 6-foot-11 power forward averaged only 2.1 points and 1.9 rebounds in 7.6 minutes. Tyler, who reportedly earned a $140,000 salary, found it hard to adapt to the pro game and couldn't find a place in Maccabi Haifa's starting lineup.
Tyler's agent said he wasn't aware of his client's plans to leave the team.
"I'm as surprised as you are. We had no idea he was coming home," Makhtar Ndiaye of the Wasserman Media Group told ESPN's Willie Weinbaum. "I'm speechless at this point and look forward to speaking with Jeremy. A contract, a learning process -- things weren't great -- but it was part of growing up. I'm disappointed and frustrated."
Tyler's frustration was evident. Last month, he walked out on the team at halftime to protest not getting more minutes. For the last three games, he sat on the bench not wearing a uniform after being left off the Haifa squad.
Ndiaye said he spoke to Tyler earlier this week and "everything was cool."
"The kid decided on his own," Ndiaye said. "We did everything humanly possible to make it a success story for him and his family."
Sonny Vaccaro, an adviser to Tyler and his family, said his season in Europe was a positive learning experience despite how it ended.
"Nothing was lost here -- he went, it was hard, it was eight months," Vaccaro said. "It would've been beautiful, utopia, if he had played and helped his team win a championship."
Vaccaro said Brandon Jennings, now a star rookie for Milwaukee, didn't show very much in his stint overseas, either.
"Five or six NBA scouts have told me recently to just have Jeremy come home and start practicing, that the experience in Israel is not detrimental to his future," Vaccaro said.
Vaccaro, who said Tyler would sign another deal to play somewhere in August, added there's another year before Tyler would be eligible for the NBA draft, and that he didn't understand "everyone's rush to judge him."
"He's got talent and is not a bad kid," Vaccaro said.
