Jaren Jackson Jr. is set to make his return to the Memphis Grizzlies lineup against the Cleveland Cavaliers after missing five games due to a left ankle sprain. The Grizzlies coach, Taylor Jenkins, confirmed that Jackson is a 'true gametime decision' as the team looks to maintain momentum after achieving a commendable 4-1 record in his absence. Jackson has been pivotal for the Grizzlies, averaging 22.7 points, 5.8 rebounds, 1.6 blocks, and 1.3 steals per game, and his presence is expected to bolster the team's defense.

Jackson's comeback will be welcomed as the Grizzlies have faced challenges in their frontcourt depth recently, particularly with Santi Aldama still sidelined. The Grizzlies will play the Cavaliers in the first leg of a back-to-back, facing the Miami Heat the following night. The return of Jackson not only helps on the defensive end but also provides the team with an offensive boost that they have managed to work around during his absence.

Week 19 marks the onset of the fantasy postseason for many managers, bringing significant injury concerns that impact lineup decisions. Jayson Tatum and Kristaps Porzingis of the Boston Celtics are both dealing with injuries; Tatum is questionable with knee tendinopathy, while Porzingis is doubtful due to an illness. If Tatum sits, Sam Hauser may see increased minutes, and Payton Pritchard could have more fantasy value.

LeBron James will miss at least two weeks with a groin strain, forcing the Lakers to rely heavily on Luka Doncic and Austin Reaves. Meanwhile, Jalen Brunson of the Knicks is out for at least two weeks with an ankle injury, leaving Miles McBride as the top streaming option. Tyrese Maxey's back strain has opened up opportunities for Quentin Grimes with the 76ers. Jaren Jackson Jr. is week-to-week with an ankle sprain, while Nikola Vucevic's calf strain has boosted Zach Collins' value for the Bulls.

The Memphis Grizzlies are set to face the New Orleans Pelicans, marking the fourth and final regular-season matchup between the two teams. Currently, the Grizzlies lead the series 3-0, including a recent 139-126 victory. Jaren Jackson Jr. was instrumental in that game, scoring 29 points, but he'll miss this matchup due to injury. The Grizzlies are also without Santi Aldama, alongside several others, while the Pelicans are missing key players like Zion Williamson and CJ McCollum, who are out with various injuries.

This game represents an important opportunity for the Grizzlies to solidify their dominance in the series, while the Pelicans, despite their injuries, will be looking to salvage some pride on their home court. Fantasy managers should keep a close eye on the injury reports leading up to the game, as both teams are dealing with significant absences.

The Memphis Grizzlies have embraced a new offensive system that emphasizes fluid movement and spatial awareness, moving away from traditional pick-and-roll strategies. Jaren Jackson Jr. expressed initial concerns about the complexity of the system, while Scotty Pippen Jr. questioned how it would benefit him as a point guard reliant on pick-and-roll plays.

Training camp revealed that players needed to learn how to cut and relocate effectively without set plays. Despite Jackson's hamstring injury limiting his participation, teammates quickly adapted, showing impressive execution of the new offense. This shift has contributed to the Grizzlies' strong performance, scoring 118 points per 100 possessions, marking their best offensive efficiency in years.