Jonas Valanciunas is working with former NBA player Jack Sikma this offseason, the Toronto Sun reports.

Valanciunas is working with former NBA player Jack Sikma this offseason, the Toronto Sun reports.

Analysis:

Valanciunas has rededicated himself to eating healthier and honing his offensive skills with seven-time All-Star Sikma. Though he hasn't lost much weight, the Lithuanian center is noticeably toned. His playing time underwent a drastic decline in his third season even though he ranked second in field goal percentage (57 percent) among qualifiers. With Amir Johnson joining the Celtics, Valanciunas will battle Bismack Biyombo for precious center minutes, but given coach Dwane Casey's commitment to defense, Valanciunas appears destined for a similar treatment heading into the final year of his rookie contract.