The Ravens practiced Thursday without only one player who is not on the physically-unable-to-perform (PUP) list as rookie inside linebacker Alvin Jones missed his fourth consecutive practice. Safety Bennett Jackson, who had not practiced since Aug. 4, returned to practice. … The team left after practice to travel to Indianapolis for two consecutive days of joint practices with the Colts. While several teams participating in joint practices have been involved in scuffles, Harbaugh said he did not anticipate similar tensions between the Ravens and Colts. “We expect it to be very professional,” he said. “We expect it to be all about football. We expect to go in there and take the opportunity to improve as a football team.” … The Ravens practiced indoors because their outside fields were being resodded. “The footing was getting a little bit loose, and [team president] Dick Cass and [team owner] Steve Bisciotti just stepped up and said, ‘Hey, we have to put our guys on the best fields possible,’ and they’re being redone,” Harbaugh said. “So they’ll be ready when we get back. That’s why we were inside today.” … Wide receiver Quincy Adeboyejo (upper leg muscle), linebacker Bam Bradley (ACL) and cornerback Jaylen Hill (right ACL, MCL) are still on the PUP list, and Harbaugh has said the expectation was for the three players to remain on the list until at least the start of the regular season.