Fisher indicated the Rams are putting in a small package of plays for him in an effort to get him up to speed .
Rams 's no guarantee Welker will be in his new No. 19 jersey for this week 's game against the Chicago Bears .
Fisher indicated the Rams are putting in a small package of plays for him in an effort to get him up to speed , but it 's no guarantee Welker will be in his new No. 19 jersey for this week 's game against the Chicago Bears .