Northwestern wide receiver Christian Jones, who sat out all of last season after tearing his ACL in fall camp, had an arthroscopic procedure on the same knee and is out for the remainder of spring practice, according to a team spokesman.
Jones had returned to the field for spring practice, but required the surgery to "clean up" something in the same knee on which he had surgery last summer. He is expected to be "full-go" in time for fall camp though.
Justin Jackson, who suffered a lower body injury earlier in March, also had a "minimally invasive knee cleanup." Like Jones, he is out for the rest of spring practice, but should be ready to go in August.
In other injury news, Mike McHugh had surgery to repair a foot injury sustained during the spring. He is also expected to return for preseason camp though.
On a positive note, Traveon Henry, Blake Hance, Ian Park and Cole Johnson were all back in action Tuesday for Northwestern's first practice of its second spring phase. All four had been held out for the first phase.
Matt Harris, who had been limited, was also a full-go for the first time this spring.
Finally, two NU players have retired from football: wide receiver Tommy Fuessel and defensive lineman Eric Joraskie.
Northwestern has four remaining spring practices, two of which are open practices at Ryan Field. This first is this Saturday, April 4. The second is next Saturday, April 11.