SAN FRANCISCO The broad countdown to Francisco Alvarezs return to the Mets lineup began Tuesday when the catcher underwent surgery in his left thumb. Alvarez, according to the team, is expected to need an eight-week rehab which would place his earliest return into late June. The second-year catcher stumbled rounding first base at Dodger Stadium on Friday and . An MRI exam revealed the tear. Francisco Alvarez will mi s considerable time for the Mets with a thumb injury. Getty Images Alvarez initially said the timetable for return would be six to eight weeks, but it appears the Mets will play it conservatively with him. Explore More Were looking at eight weeks because of the position he plays and its the left [thumb], manager Carlos Mendoza said before at Oracle Park. Its one of those where we have got to be mindful and I know hes going to try to push it, but we have got to make sure we get him back. Omar Narvaez (1-for-4) and Tomas Nido Jared Shuster Jersey are handling the catching duties in Alvarezs absence. Mendoza has said he intends to utilize both, but Narvaez as a left-handed swinger could see most of the action. Alvarez will be allowed to begin baseball activities once he regains 80 percent strength in the thumb. Mendoza wants to keep Alvarez around the team as much as po sible so he feels as if he still belongs. So he doesnt feel like hes not contributing, whether its with meetings or the energy that he brings, Mendoza said. Its one of those where we are going to have to talk to him every day to make sure he doesnt push it too much. Max Kranick was reinstated from the injured list and optioned to Triple-A Syracuse. The lefty, who pulled a hamstring during his first spring training start, will provide further rotation depth. Joey Wendle struggled at the plate on Wednesday. AP Joey Wendle (0-for-4 with two strikeouts) started at second base and Jeff McNeil (2-for-4) shifted to left field, giving the Mets an additional left-handed bat in the starting lineup with Harrison Bader on the bench against Logan Webb. Pete Alonso entered play within a homer of joining the Mets 200 club. Darryl Strawberry (252), David Wright (242) and Mike Piazza (220) are the only players to have hit at least 200 homers in a Mets uniform. The Mets entered the day with 159 strikeouts at the plate, the third-lowest total in the major leagues. The team had a 19.6 percent strikeout rate, the fifth-lowest total in the major leagues. Chicago White Sox Jersey