On August 4, starting LB Chris Gocong tore his right Achilles tendon during morning practice. He will likely miss the entire season. On August 6, coach Pat Shurmur named Brandon Weeden as the starting QB. Weeden, 28, was picked 22nd overall by the Browns in the 2012 NFL Draft. All NFL teams were required to cut their rosters from 90 players to 75 by August 27.  One day earlier, the Browns released nine players, most  notably WR veteran WR Carlton Mitchell. The Browns also placed LBs Emanuel Acho and Chris Gocong on injured reserve, waived/injured DEs Marcus Benard and Austin English and CB Antwaun Reed.  The team also placed DT Phil Taylor on the physically unable to perform list. With one open roster spot, the Browns claimed DE Ernest Owusu off waivers from the Minnesota Vikings. All NFL teams were required to cut their rosters from 75 players to 53 by August 31.  The Browns cut quarterback Seneca Wallace; running back Adonis Thomas; fullback Brad Smelley; wide receivers Josh Cooper and Rod Windsor, tight ends Dan Gronkowski and Evan Moore; offensive linemen Dominic Alford, Stanley Daniels, Garth Gerhart, Jerrod Shaw, and J.B. Shugarts; defensive linemen Ronnie Cameron, William Green, Ernest Owushu, Brian Schaefering, and Kiante Tripp; linebackers Benjamin Jacobs and Quinton Spears; and defensive back James Dockery.  In addition, DT Phil Taylor remained on the physically unable to perform list. Cameron, Cooper, Gerhart, Jacobs, Shaw, Shugarts, and Smelley were added to the Browns' practice squad. On September 2, the Browns elected offensive tackle Joe Thomas, linebacker D'Qwell Jackson, and kicker Phil Dawson as captains.
Question: How many Browns players were placed on injured reserve?
Answer: 2