Metro Transit light-rail trains are working to get back on schedule after mechanical issues began causing delays late Wednesday afternoon as commuters and concert-goers begin to converge on TCF Bank Stadium.

Metro Transit officials tweeted about 3 p.m. that delays on the Green and Blue lines are possible Wednesday because of mechanical issues. Crews were working on the tracks to fix the problem.

The Rolling Stones are rocking the TCF Stadium Wednesday night.

Mary Lynn Smith