Anne M. Peterson FILE - Los Angeles FC forward Carlos Vela and Seattle Sounders forward Jordan Morris, right, vie for the ball during the second half of an MLS playoff soccer match in Seattle, in this Tuesday, Nov. 24, 2020, file photo. Vela, who had an MLS record 34 goals in 2019, missed the MLS is Back tournament because of his wife's pregnancy and the birth of their child. Then he was hampered by injuries, appearing in only eight games. (AP Photo/Ted S. Warren, File) April 15, 2021 - 2:29 PM Major League Soccer embarks on the 2021 season with a new labour agreement in hand, the return of two big stars, a new team in Austin, Texas, and lessons learned from 2020.