A Sports Illustrated[3] college football feature in its 10/31/1966 issue praised Leo and included a photo and quotations from an interview with him after an important Harvard victory against Dartmouth.
Against the Jets in a game in Richmond, Virginia, he led the team both in pass receptions and receiving yards, and was moved to the starting lineup the following week against the Dolphins.
He concluded his success at flanker by scoring in an AFL v. NFL game against the Philadelphia Eagles at his old stomping grounds, Harvard Stadium, and serving as the team's primary kick and punt returner.
The promotional materials for that game featured Leo prominently with a photo and article noting how well he played in when he joined the club the prior year and predicting that we would see "quite a bit of action" at both flanker back and halfback in the 1968 season.
However, various injuries held him back as other veteran receivers pushed for more playing time, but he maintained his starting spot on the punt and kick return squads as the regular season began.
After returning punts and kickoffs in the first game of the regular season in Buffalo, the following week Leo suffered a serious injury in a practice scrimmage inflicted by a teammate and was hospitalized for four days.