Wes Welker says he has no apprehensions about concussions or rust as he returns to the Denver Broncos' lineup Sunday for the first time in more than a month. Welker missed the Broncos' last 3 1/2 games after sustaining his second concussion in a four-week span just before halftime in a game against Tennessee on Dec. 8. The Broncos sorely missed him four days later in a 27-20 loss to San Diego, when they were just 2 for 9 on third down and suffered their only home loss of the season. Denver (13-3) hosts the Chargers (10-7) Sunday in the AFC Divisional round. More...