​The New York Yankees lineup has not been at full strength for quite some time given Aaron Judge has not played since May, but it has been especially depleted since Cody Bellinger went down.Bellinger suffered a Grade 2 left hamstring strain while legging out an extra-base hit in late July. The 31-year-old veteran, signed this past offseason to a new five-year, $162.5 million contract, has continued to deliver in the Bronx. MORE: Yankees’ Jazz Chisholm Jr. in danger of losing starting spotNot only has he provided elite defense in the outfield but his bat has remained a plus, as he has posted a .259 batting average, .350 on-base percentage, .770 OPS, 11 home runs and 53 RBIs across 374 at-bats.Since going down, Bellinger has continued to perform light baseball activities, and manager Aaron Boone has added that he has now progressed to running at high intensity, which is the biggest test given the nature of a hamstring injury.With Bellinger looking good and not receiving any setbacks, Boone announced another positive update just before Friday’s series opener against the Toronto Blue Jays. Boone revealed that Bellinger will go on a rehab assignment next week, according to Gary Phillips of NY Daily News Sports.Given Bellinger has missed just a few weeks, his rehab assignment should not extend too long, and the Yankees could use his bat back in the lineup sooner rather than later. Entering Friday they still remain 6.5 games back of the Tampa Bay Rays for first place in the American League East.— Enjoy free coverage of the top news & trending stories with The Big Lead Newsletter —