Bojan Bogdanovic joined Otto Porter Jr. in receiving a qualifying offer from the Wizards on Monday. (Rick Scuteri/Associated Press)

In an expected move ahead of the start of free agency, the Washington Wizards extended qualifying offers to restricted free agents Otto Porter Jr. ($7.7 million) and Bojan Bogdanovic ($4.6 million) Monday, a league source told The Post. The moves are considered a formality, allowing the Wizards to retain negotiating rights.

The players can choose to sign deals with Washington and become unrestricted free agents next season. However, both Porter and Bogdanovic are likely to test the market beginning July 1, and sign offer sheets from another team for more money. Since they are restricted free agents, the Wizards can still keep the players by matching the contract offers within 48 hours.

Porter, who turned 24 on June 3, made a huge leap in his fourth season, averaging career highs in points (13.4), rebounds (6.4), steals (1.5), blocks (.5) and three-point shooting percentage (.434). Bogdanovic, 28, played 26 regular season games with the Wizards and became the team’s best shooter off the bench. Bogdanovic averaged 12.7 points and shot 39 percent from the arc while with Washington.

Washington did not extend an offer to its third restricted free agent, point guard Trey Burke. Without an offer, Burke becomes an unrestricted free agent and is expected to sign with another team.

Tim Bontemps in New York contributed to this report.