Acce s the Mets beat like never before Join Post Sports+ for exciting subscriber-only features, including real-time texting with Mike Puma about the inside buzz on the Mets. LOS ANGELES Mark Vientos stay on the injured list may not last very long. The Jonas Valanciunas Jersey Mets received relatively good news about the third baseman on Wednesday, according to manager Carlos Mendoza, with an MRI exam revealing the two days earlier was a low-grade strain. Mendoza added that Vientos will be treated for 10-14 days until he is symptom free before he begins building up for a return. Vientos fell running to first base Monday and emerged grabbing at the hamstring. A guy goes down the way he did, you kind of expect the worst, Mendoza said before the . But once he went through all the testing, talking to the trainers, you hate to see him go down at any time, but the fact they are telling us its low grade is good news. Explore More Ronny Mauricio was promoted from Triple-A Syracuse on Tuesday to fill Vientos roster spot and started a second straight game on Wednesday. Mark Vientos suffered a hamstring injury in the series against the Dodgers. JASON SZENES/NY POST He went 0-for-4 with two strikeouts. Sean Manaea will begin a minor league rehab a signment on Friday, when he is scheduled to throw 35 pitches for Single-A Brooklyn. The left-hander has been rehabbing an oblique strain since spring training. Mets pitcher Sean Manaea is set to begin a rehab a signment. JASON SZENES/ NY POST Brett Baty, who has excelled defensively at third base since his return last month from Syracuse, started at second base, with Mauricio at third. Mendoza said he reached the decision on the alignment after asking Mauricio where he felt the most comfortable. CHECK OUT THE AND Mauricio said he was good wherever, but third base, coming up as a shortstop, hes more comfortable on the left side of the infield as of right now, Mendoza said. Mendoza said hes inclined to stay with that arrangement for the short term but also can envision Mauricio shifting to second with Baty, who also went 0-for-4 in Wednesdays win, at third. Delivering insights on all things Amazins Sign up for Inside the Mets by Mike Puma, exclusively on Sports+ Thank you By clicking above you agree to the and . Enjoy this Post Sports+ exclusive newsletter! Mendoza said the game situation will dictate how he uses Paul Blackburn from the bullpen this week. Blackburn, who did not pitch in Wednesdays win, is stretched out as a starter, positioning him to work multiple innings as needed, but Mendoza said the right-hander could also be a high-leverage option late in the game. Blackburn pitched five scorele s innings on Monday as a sixth starter in the rotation. David Wright was on the field during batting practice with a group of youth players, including his children. Wright, who resides in the area, introduced the group to Francisco Lindor. Xavier Tillman Jersey