Some Harvard sports teams might struggle to field teams without foreign students. Not long after President Donald Trump’s first attempt to bar Harvard from enrolling international students last month, the school’s men’s soccer team, along with athletic teams all over campus, received a note from the coaching staff.

President Donald Trump is moving to block nearly all foreign students from entering the country to attend Harvard University, his latest attempt to choke the Ivy League school from an international pipeline that accounts for a quarter of the student body.