Victor Wembanyama has been making an early case for MVP with his incredible play this season. However, the momentum of the San Antonio Spurs' main man appears to have been stalled by his first major injury in the 2025-26 campaign.On Monday, ESPN's Shams Charania reported the results of Wembanyama's recent MRI. He had missed the Spurs' game against the Sacramento Kings over the weekend due to calf tightness, but now, it appears that he is dealing with a more serious issue."San Antonio Spurs star Victor Wembanyama has a left calf strain and is expected to be sidelined for a few weeks, sources tell ESPN," Charania tweeted.Shams Charania @ShamsCharaniaLINKSan Antonio Spurs star Victor Wembanyama has a left calf strain and is expected to be sidelined for a few weeks, sources tell ESPN.If this diagnosis is accurate, Wembanyama would be sidelined during a crucial stretch as the Spurs try to keep up with the fierce competition in the Western Conference.After a brief stint near the top of the standings, San Antonio has slipped to 9-4, which currently puts them at fifth place in the West. However, teams like the Minnesota Timberwolves (8-5) and the Golden State Warriors (9-6) are breathing down the Spurs' necks, and their win-loss record over the next few weeks can either help them climb the standings or cause them to get left behind.In 12 games this season, the 7-foot-4 Frenchman is averaging 26.2 points, 12.9 rebounds, 4.0 assists, 1.1 steals, and a league-leading 3.6 blocks per game. Just as the Spurs are in danger of slipping further down the standings, Wembanyama's place in the hotly contested MVP race (which includes three-time winner Nikola Jokic and reigning MVP Shai Gilgeous-Alexander) is in jeopardy as well."On your head": Victor Wembanyama engages in heated trash talk with Draymond GreenOver the past few days, the Spurs took on the Golden State Warriors in a two-game home stand. Among the highlights of these thrilling games was the intense back-and-forth between Wembanyama and Draymond Green.A viral clip shows the 21-year-old phenom holding his own in smack talk, which Green happens to specialize in. One verbal shot from Wembanyama came right after he threw down a dunk amidst Green's attempt to defend him in the paint."On your head!" Wembanyama exclaimed.After the game, Wembanyama told reporters that he decided to hold his ground, as Green was talking to him in "a certain way."