Redskins’ Shanahan taking ‘wait and see’ approach after reports link Moss to Canadian doctor

Redskins’ Shanahan: ‘Wait and see’ on Moss, doctor

Texans LB Cushing says he tested positive for HCG, denies using any banned substance

Texans LB Cushing denies drug use

HOUSTON — Houston Texans linebacker Brian Cushing said Thursday he never used any banned substances even though he tested positive for a performance-enhancing drug.

Person familiar with Cushing’s case: Texans LB tested positive for HCG, a fertility drug

AP Source: Cushing tested positive for HCG

Research provides first evidence that growth hormone can improve athletic performance

Study: Growth hormone can aid athletic performance

Bud Selig: Major League Baseball’s science adviser examining HGH test

Selig: MLB’s science adviser examining HGH test

Cincinnati Reds pitcher Edinson Volquez suspended 50 games for banned fertility substance

Reds pitcher Volquez suspended 50 games for drug

AP ENTERPRISE: Athletes turn to ‘blood spinning’ to heal faster, but researchers have doubts

Floyd Mayweather Jr., Shane Mosley hope to set new standard for drug testing in boxing

Mayweather, Mosley embrace Olympic-style drug test

NFL hopes to test for human growth hormone; Major League Baseball talks with union

NFL hopes to test for HGH; MLB talks with union

WADA offers FIFA help investigating use of undetectable stimulants from African medicines

WADA offers FIFA assistance over African medicines

Major League Baseball hopes to test minor league players for human growth hormone

MLB hopes to test minor leaguers for HGH

NEW YORK — Major League Baseball hopes to test minor leaguers for human growth hormone this year following the suspension of a British rugby player who admitted using the substance.

AP Interview: FIFA fears use of undetectable African medicines as stimulants at World Cup

AP Interview: FIFA concern over African stimulants

WADA head says more than 30 athletes excluded from Vancouver Olympics for doping violations

WADA confirms more than 30 excluded from Olympics

Mayweather promoter argues for compromise, but Pacquiao promoter says megafight still dead

Pacquiao moving on, Mayweather still wants fight

Pacquiao files defamation lawsuit against Mayweathers and Golden Boy

Pacquiao files suit against Mayweathers

LAS VEGAS — Manny Pacquiao upped the ante Wednesday in his standoff with Floyd Mayweather Jr. by filing a lawsuit alleging that Mayweather and others defamed him by falsely accusing Pacquiao of using performance-enhancing drugs.

Polo team hit by deaths of 21 elite horses last season returns to Fla. for new start

Polo team hit by loss of horses returns to play

Pacquiao planning to file defamation suit against Mayweather and his camp

Pacquiao says he plans to sue Mayweather

SARANGANI, Philippines — Manny Pacquiao says he is planning to file a defamation lawsuit against Floyd Mayweather Jr., the fighter’s father, and Golden Boy Promotions

Blood testing remains lone issue in way of Pacquiao-Mayweather fight

Blood remains issue for Pacquiao-Mayweather

Where’s the beef? Experts say drug-spiked meat could explain Contador’s positive doping test

Scandal on Canadian football team produces first positive HGH test in North America

Chief doctor of Armstrong’s US Postal Service team dismisses Landis’ blood-doping claims

Major League Baseball begins random blood testing for human growth hormone in minor leagues

New blood test could be game-changer in finding HGH, but will baseball and football play along

Teammate: Moss received 3 treatments from Canadian doctor, confident he will be cleared

Moss tells teammates he was treated by Canadian doctor; Redskins confident he will be cleared

Court rules for US swimmer Hardy, rejecting WADA bid to extend ban; Olympic status undecided

Armstrong shrugs off latest doping accusation: ‘Floyd lost his credibility a long time ago.’