The conference also issued a public reprimand of Terps coach Randy Edsall and fined Maryland $10,000.
Diggs and other Maryland players were involved a confrontation with Penn State players shortly after the teams took the field Saturday. During the incident, Diggs’ right hand made contact with a game official's face.
Diggs was not ejected, but the Big Ten determined that his actions toward officials and opposing players violated the conference's sportsmanship policy.
The suspension means Diggs will be unavailable for Maryland’s next game, Nov. 15 against eighth-ranked Michigan State in College Park.
“I sincerely apologize for my conduct prior to kickoff this weekend,” Diggs said in a statement issued by Maryland. “I let my emotions get the best of me and did not properly represent myself as student-athlete and leader of the University of Maryland football team. My behavior towards the officiating crew and the Penn State football team were unacceptable. I take accountability for my actions and will do everything I can to support my teammates in preparation for our next game against Michigan State.”
The reprimand of Edsall stemmed from the coach failing to control his players, whom the Big Ten said initiated the skirmish.
“The officials did a good job of containing the situation once it started," the Big Ten said in a statement. "And fortunately the incident did not escalate any further."
Edsall released the following statement: “I accept the penalties handed down by the Big Ten Conference and take full responsibility of our actions this past Saturday at Penn State. Our football program did not live up to the standards that we set for ourselves. Moving forward, we will use better judgment and remain composed so that we better represent the University of Maryland. We have learned from this experience and will take the necessary steps to make sure this does not happen again.”
The Big Ten also called the decision of Maryland’s captains to not shake hands with Penn State’s captains during the coin toss “exceptionally regrettable.”
After the game, Edsall and Maryland athletic director Kevin Anderson apologized for the players' refusal to shake hands. Maryland won the game, 20-19, their first-ever victory at Penn State.
The Big Ten said it would not have any further comment on the discipline handed down to Maryland, saying the conference "considers this matter concluded."
This marks the second time this year that a Maryland coach has been reprimanded for a violation of the Big Ten's sportsmanship code. Terps men's soccer coach Sasho Cirovski was suspended a game and paid a $10,000 fine for his actions toward officials last month.