Simmons originally refused to work out for Philly prior to the draft in what many believed was a ploy to fall to No. 2 and the Lakers.
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But after a reported face-to-face meeting with 76ers GM Bryan Colangelo and coach Brett Brown in Cleveland prior to Game 6 of the NBA Finals, Simmons worked out in Philly on Tuesday.
The 6-10, 260-pound forward from LSU averaged 19.2 points, 11.8 rebounds, 4.8 assists and 2.0 steals in his lone season with the Tigers.