The Atlanta Falcons struggled mightily on the offensive line against the Philadelphia Eagles in the season opener on Sunday. While he wasn't the only problem, rookie left guard Jalen Mayfield was the most glaring.

The Falcons have signed two interior offensive linemen and a defensive lineman to the practice squad today.

According to a release from the Falcons:

Atlanta signed offensive linemen Danny Isidora and Bryan Witzmann as well as defensive lineman Mike Pennel.

In corresponding moves, the Falcons have released kicker Elliott Fry, wide receiver Juwan Green, and tight end David Wells from the practice squad.

Isidora (6'3/306) was originally selected by the Minnesota Vikings in the fifth round (180th overall) of the 2017 NFL Draft and has appeared in 25 games (six starts) for the Vikings, Dolphins and Chiefs.

Witzmann (6'7/320) has appeared in 40 games (20 starts) for the Chiefs, Bears and Panthers since entering the NFL in 2014 out of South Dakota State.

Pennel (6'4/332) has tallied 150 total tackles (85 solo), 2.0 sacks and two passes defensed in 91 career games for the Packers, Jets and Chiefs over the past seven seasons. He finished with 29 total tackles (13 solo) in 14 games for the Chiefs in 2020.

The Falcons were pushed around by the Eagles on Sunday on both sides of the line of scrimmage. Bringing in nearly a half-ton of linemen makes logical sense.

Atlanta heads to Tampa on Sunday to take on Tom Brady and the Buccaneers.

More must-reads:

TODAY'S BEST
Pacers' Pascal Siakam leads team to Game 6 win vs. Knicks
Watch: Matt Duchene's 2OT winner sends Stars to conference final
Scottie Scheffler shoots improbable 66 after warming up for PGA Championship in a jail cell
Report: Tua Tagovailoa away from Dolphins amid contract chatter
Nuggets star has worrying comment about latest injury
Paul Skenes makes incredible Wrigley Field history in second-career MLB start
Giants rookie CF to undergo season-ending labrum surgery
Yankees' Juan Soto reacts to Hal Steinbrenner contract talk
Late goal sends Panthers to Eastern Conference Finals
Ex-teammate of Shohei Ohtani placed bets with same illegal bookmaker as interpreter 
Former Rams first-round pick retires from NFL after 11 seasons
Insider provides major injury update on Celtics' Kristaps Porzingis
Watch: Bruins strike first in Game 6 with incredible backhand goal
Dodgers make series of moves involving notable players
Hurricanes not expected to re-sign defenseman, center
Maple Leafs tab former Stanley Cup winner as new head coach
NFL insider expands on competition between Steelers QBs Russell Wilson, Justin Fields
NFL sets outrageous prices for Eagles-Packers Brazil game
Broncos 'very unlikely' to bring back former NFL interceptions leader
Greg Olsen offers broadcasting advice to Tom Brady