Just a month after committing, this four-star has already changed his decision

Changes of heart happen quickly in recruiting and this is the latest example.

In January, Manuel Allen spurned a College Football Playoff participant and committed to the USC Trojans but the honeymoon appears to be over for Clay Helton and his staff. On Friday, Allen took to Twitter and announced that he will "re-open (his) recruiting process" by decommitting from USC's 2018 class.

Allen, who hails from Corona, Calif., ranks as the No. 13 player in the state according to 247Sports. Beyond that, the 6'2, 170-pound wide receiver lands at No. 101 overall nationally in the 247Sports composite rankings and this is a significant blow to what Helton is assembling for this year's recruiting class.

In addition to USC and Washington, Allen has reported offers from Nebraska and Notre Dame and the talented pass-catcher has plenty of time to settle on his destination for the future. To that end, the Trojans still boast a top-10 recruiting class in the country and there is nothing that says Allen could not return to the fold if he has a change of heart between now and February 2018.

A defection like this would be enough to sink many recruiting classes, but USC remains in good position. Now, attention turns to where Manuel Allen might land in the future and the possibilities are vast for this duly hyped prospect.