UPDATED 6/19/17, 1:30 p.m. ET:

The 76ers and Celtics have officially agreed to a trade involving the No. 1 and No. 3 picks in the 2017 NBA Draft.

See original story below.

The Philadelphia 76ers and Boston Celtics have reportedly come to terms on a deal that will result in the Sixers receiving the Celtics' first overall pick for their No. 3 pick, according to TNT's David Aldridge.

Boston is expected to get another first-rounder from the 76ers, which is believed to be the 2018 pick that Philadelphia acquired from the Los Angeles Lakers. However, if that pick doesn't land between No. 2 and 5 in the 2018 NBA Draft, the Sixers will send the 2019 first-round pick they received from the Sacramento Kings. 

The 76ers have apparently set their sights on taking Washington guard Markelle Fultz, who averaged 23.2 points, 5.9 assists, 5.7 rebounds, 1.6 steals, and 1.2 blocks last season. With a cornerstone, once-in-a-generation player in Joel Embiid and point-forward Ben Simmons already on the roster, the Sixers believe they can fill their need for a bonafide scorer with Fultz. 

On Saturday, Fultz stopped by the 76ers' practice facility for a workout and meeting with team officials. During his visit, the 19-year-old was seen wearing a Philadelphia cap, and even took a photo with Embiid, Simmons, and Robert Covington. Embiid posted the photo on his Instagram account, hinting that this Big 4 would be "legendary if it happens."

 

This should be legendary if it happens #TheProcess

A post shared by Joel "The Process" Embiid (@joelembiid) on Jun 17, 2017 at 6:06pm PDT

The Sixers and Celtics are expected to finalize the deal on Monday (June 19).

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