The San Francisco 49ers are doing great in the current NFL season with a 3-0 record and their defensive end is seen as one of the prime reasons. But with cornerback Ahkello Witherspoon reportedly missing a month due to a foot sprain, stocking up on alternates may be a good idea.

Sources tell Ian Rapoport, the 49ers have reportedly signed Jalen "Teez" Tabor to their practice squad. The 23-year-old is seen as added insurance for San Francisco if their defensive line continues to dwindle. Tasked to take over from Witherspoon is Emmanuel Moseley.

With a dwindling secondary, it appears that Tabor is not the last player the 49ers are adding this NFL season. Sources also tell Matt Barrows that they will be adding another mystery quarterback to the practice squad.

The identity has not been divulged for now although there were names dropped recently. That list included Dontae Johnson, David Amerson, and Coty Sensabaugh. They are considered short-term help as Witherspoon and Jason Verrett recover from their injuries.

The 49ers will welcome all the help they can get as they head into Week 4. They are scheduled to face the Cleveland Browns and Los Angeles Rams and then brace for a tough grind against the New Orleans Saints, Green Bay Packers and the Baltimore Ravens. It will be interesting if they can keep the clean slate, a record that is also held by the New England Patriots and the Kansas City Chiefs.

The 49ers are also getting it done on the offensive end. Jimmy Garoppolo is leading the way in three games. He has passed for 739 yards, five touchdowns, and four interceptions while completing 63.9 percent of his passes.

Another bright spot for San Francisco this NFL season is Matt Breida. He is leading the charge with 226 yards. George Kittles has also been consistent with 17 receptions for 165 yards. Not to be forgotten is Marquise Goodwin and Deebo Samuels who are also keeping the 49ers machine on the move.

The 49ers will face the Browns next at the Levi Stadium, a team expected to use their high-powered offense to the hilt. Head coach Kyle Shanahan that his short-term defensive line can hold the fort for now as the main players recover from their injuries.